@@ -114,11 +114,11 @@ Budget-conformance props. Not examples. Conventions: [`showcase/README.md`](show
   <a href="showcase/wooden-barrel/"><img src="showcase/wooden-barrel/preview.webp" width="24%" alt="Wooden barrel: a 20-stave wine-cask with a head of four boards, chord-lofted iron hoops, and a bung on a dark studio floor" /></a>
   <a href="showcase/campfire/"><img src="showcase/campfire/preview.webp" width="24%" alt="Campfire: a two-course ring of rounded fieldstones around a tripod of logs and glowing ash on a dark studio floor, warm wedge on the back wall" /></a>
   <a href="showcase/market-stall/"><img src="showcase/market-stall/preview.webp" width="24%" alt="Market stall: a grained timber frame with post feet, diagonal side braces, slatted counter, rafters, and a striped canvas awning on a dark studio floor, warm wedge on the back wall" /></a>
-  <a href="showcase/street-lantern/"><img src="showcase/street-lantern/preview.webp" width="24%" alt="Street lantern: an iron post with brass collars, a braced arm, and a muntined amber cage on a dark studio floor" /></a>
+  <a href="showcase/street-lantern/"><img src="showcase/street-lantern/preview.webp" width="24%" alt="Street lantern: an iron post with aged brass collars, a knee brace tenoned into post and arm, and a muntined amber cage on a dark studio floor" /></a>
   <a href="showcase/treasure-chest/"><img src="showcase/treasure-chest/preview.webp" width="24%" alt="Treasure chest: a slatted wooden chest with iron bands, corner brackets, and an open lid on a dark studio floor" /></a>
   <a href="showcase/terrain-scatter/"><img src="showcase/terrain-scatter/preview.webp" width="24%" alt="Terrain scatter: a Geometry Nodes dirt hill tile with bevelled masonry rocks on a dark studio floor" /></a>
   <a href="showcase/fence-kit/"><img src="showcase/fence-kit/preview.webp" width="24%" alt="Fence kit: a timber post-and-rail section with pyramidal caps, iron shoes and straps on a dark studio floor" /></a>
-  <a href="showcase/watchtower/"><img src="showcase/watchtower/preview.webp" width="24%" alt="Watchtower: a timber lookout with X-braces, hatch ladder, plank platform, and a coursed shake roof on a dark studio floor" /></a>
+  <a href="showcase/watchtower/"><img src="showcase/watchtower/preview.webp" width="24%" alt="Watchtower: a grained timber lookout with X-braces, hatch ladder, a plank platform on deck girts, and a coursed shake roof on a dark studio floor" /></a>
   <a href="showcase/cart/"><img src="showcase/cart/preview.webp" width="24%" alt="Cart: a two-wheel wooden cart with spoked wheels, slatted bed, and shafts on a dark studio floor" /></a>
   <a href="showcase/park-bench/"><img src="showcase/park-bench/preview.webp" width="24%" alt="Park bench: a wrought-iron bench with scrolled legs and wooden slats on a dark studio floor" /></a>
   <a href="showcase/wheelbarrow/"><img src="showcase/wheelbarrow/preview.webp" width="24%" alt="Wheelbarrow: a wooden tray with walls of stacked boards and iron straps, a spoked wheel, rear legs, and handles on a dark studio floor" /></a>
@@ -149,15 +149,15 @@ Budget-conformance props. Not examples. Conventions: [`showcase/README.md`](show
 
 [`market-stall`](showcase/market-stall/) — procedural timber stall with striped awning and counter through the same pipeline. Falsifiers `--skip-decimate` exits 9, `--short-brace` exits 17.
 
-[`street-lantern`](showcase/street-lantern/) — procedural hanging lantern with iron post, brass fittings, and amber cage through the same pipeline. Falsifier `--skip-decimate` exits 9.
+[`street-lantern`](showcase/street-lantern/) — procedural hanging lantern with iron post, brass fittings, and amber cage through the same pipeline. Falsifiers `--skip-decimate` exits 9, `--shallow-brace` exits 20.
 
 [`treasure-chest`](showcase/treasure-chest/) — procedural slatted chest with iron bands, corner brackets, and an open lid through the same pipeline. Falsifier `--skip-decimate` exits 9.
 
 [`terrain-scatter`](showcase/terrain-scatter/) — Geometry Nodes hill tile with bevelled masonry scatter through the same pipeline. Falsifier `--skip-decimate` exits 9.
 
 [`fence-kit`](showcase/fence-kit/) — procedural post-and-rail fence section through the same pipeline. Falsifier `--skip-decimate` exits 9.
 
-[`watchtower`](showcase/watchtower/) — procedural timber lookout with X-braces, hatch ladder, platform, and coursed shake roof through the same pipeline. Falsifier `--skip-decimate` exits 9.
+[`watchtower`](showcase/watchtower/) — procedural timber lookout with X-braces, hatch ladder, platform, and coursed shake roof through the same pipeline. Falsifiers `--skip-decimate` exits 9, `--short-joists` exits 17.
 
 [`cart`](showcase/cart/) — procedural two-wheel wooden cart with spoked wheels, slatted bed, and shafts through the same pipeline. Falsifier `--skip-decimate` exits 9.
 
@@ -203,7 +203,7 @@ or expand a category below.
 
 <p align="center">
   <a href="examples/grease-pencil-rosette/"><img src="examples/grease-pencil-rosette/preview.webp" width="24%" alt="Grease pencil rosette: five nested neon rose curves glowing against a dark studio wall" /></a>
-  <a href="examples/parent-inverse-orrery/"><img src="examples/parent-inverse-orrery/preview.webp" width="24%" alt="Parent inverse orrery: a brass tabletop orrery with a glowing sun and three planets" /></a>
+  <a href="examples/parent-inverse-orrery/"><img src="examples/parent-inverse-orrery/preview.webp" width="24%" alt="Parent inverse orrery: a brass tabletop orrery with a glowing yellow sun and three planets" /></a>
   <a href="examples/compositor-glare/"><img src="examples/compositor-glare/preview.webp" width="24%" alt="Compositor glare: three neon rings with colored bloom halos" /></a>
   <a href="examples/image-pixels-testcard/"><img src="examples/image-pixels-testcard/preview.webp" width="24%" alt="Image pixels testcard: a studio monitor showing a procedural broadcast test card" /></a>
 </p>
@@ -706,7 +706,7 @@ ring pinned and the tip deflected. A straight tube is a failure.
 </tr>
 <tr>
 <td width="46%" valign="middle">
-<a href="examples/parent-inverse-orrery/"><img src="examples/parent-inverse-orrery/preview.webp" alt="Parent inverse orrery: a brass tabletop orrery with a glowing sun, three planets on pivot arms inside brass orbit rings, and a silver moon, on a dark studio floor" /></a>
+<a href="examples/parent-inverse-orrery/"><img src="examples/parent-inverse-orrery/preview.webp" alt="Parent inverse orrery: a brass tabletop orrery with a glowing yellow sun, three planets on pivot arms inside brass orbit rings, and a silver moon, on a dark studio floor" /></a>
 </td>
 <td valign="middle">
 
 
@@ -519,7 +519,7 @@ <h2><a href="color-attribute-wheel/">color-attribute-wheel</a></h2>
       </article>
       <article class="card" data-tags="objects transforms">
         <a class="card-media" href="parent-inverse-orrery/" tabindex="-1" aria-hidden="true">
-          <img src="assets/parent-inverse-orrery-hero.webp" alt="A brass orrery: a pale central sun on a stand with three planets on arms and orbit rings." loading="lazy" decoding="async" />
+          <img src="assets/parent-inverse-orrery-hero.webp" alt="A brass orrery: a glowing yellow sun on a stand with blue, green and orange planets on arms, orbit rings and a silver moon." loading="lazy" decoding="async" />
         </a>
         <div class="card-body">
           <h2><a href="parent-inverse-orrery/">parent-inverse-orrery</a></h2>
@@ -959,12 +959,12 @@ <h2><a href="market-stall/">market-stall</a></h2>
       </article>
       <article class="card" data-tags="mesh export showcase">
         <a class="card-media" href="street-lantern/" tabindex="-1" aria-hidden="true">
-          <img src="assets/street-lantern-hero.webp" alt="A black iron street lamp post with an arm holding a hanging lantern with glowing panes." loading="lazy" decoding="async" />
+          <img src="assets/street-lantern-hero.webp" alt="A black iron street lamp post with aged brass collars and a knee brace under the arm, holding a hanging lantern with glowing panes." loading="lazy" decoding="async" />
         </a>
         <div class="card-body">
           <h2><a href="street-lantern/">street-lantern</a></h2>
           <p class="teaches">A procedural hanging street lantern through UVs, bake, LOD, collider, and Unity glTF, asserting recomputed budgets rather than an API contract.</p>
-          <p class="witnesses"><span class="tag">witnesses</span> Recomputed: 3338 tris, three materials with 1530 metal, 24 glass and 209 brass faces, UVs in 0..1 with zero AABB overlap, outer AABB 0.300×0.786×1.287 m, zmin 0, hygiene 0, brace BVH gap 0, hanger-roof gap −1 mm, post 0.100×1.120 m plumb 0, LOD ratios in band (5.2 COLLAPSE 2 tris leaner on LOD2), convex collider 78 tris, non-empty glTF. --skip-decimate exits 9; --stray-vert 15; --lift-z 16; --float-brace 17; --sink-arm 18; --rake-post 19.</p>
+          <p class="witnesses"><span class="tag">witnesses</span> Recomputed: 3338 tris, three materials with 1530 metal, 24 glass and 209 brass faces, UVs in 0..1 with zero AABB overlap, outer AABB 0.300×0.786×1.287 m, zmin 0, hygiene 0, brace BVH gap 0, brace ends 13 mm into the post and the arm, hanger-roof gap −1 mm, post 0.100×1.120 m plumb 0, LOD ratios in band (5.2 COLLAPSE 2 tris leaner on LOD2), convex collider 78 tris, non-empty glTF. --skip-decimate exits 9; --stray-vert 15; --lift-z 16; --float-brace 17; --sink-arm 18; --rake-post 19; --shallow-brace 20.</p>
           <a class="card-link" href="street-lantern/">View showcase piece<span class="sr-only"> street-lantern</span> <span aria-hidden="true">&rarr;</span></a>
         </div>
       </article>
@@ -1003,12 +1003,12 @@ <h2><a href="fence-kit/">fence-kit</a></h2>
       </article>
       <article class="card" data-tags="mesh export showcase">
         <a class="card-media" href="watchtower/" tabindex="-1" aria-hidden="true">
-          <img src="assets/watchtower-hero.webp" alt="A timber watchtower on braced legs with a ladder, railed platform and a pale shingled pyramid roof." loading="lazy" decoding="async" />
+          <img src="assets/watchtower-hero.webp" alt="A grained timber watchtower on braced legs with a ladder, a railed platform on deck girts, rusted iron collars and a shingled pyramid roof." loading="lazy" decoding="async" />
         </a>
         <div class="card-body">
           <h2><a href="watchtower/">watchtower</a></h2>
           <p class="teaches">A procedural timber watchtower through UVs, bake, LOD, collider, and Unity glTF, asserting recomputed budgets rather than an API contract.</p>
-          <p class="witnesses"><span class="tag">witnesses</span> Recomputed: 6408 tris, three materials with 300 metal and 126 roof faces, UVs in 0..1 with zero AABB overlap, outer AABB 1.594×1.594×2.973 m, grounded zmin, 4 iron shoes, rail engage 18 mm, collar standoff 2 mm, post plumb 0, LOD ratios in band (5.2 COLLAPSE leaner on LOD2), convex collider 150 tris, non-empty glTF. Hygiene all zero. --skip-decimate exits 9; --stray-vert 15; --lift-z/--short-shoes 16; --short-rails 17; --float-band 18; --rake-posts 19.</p>
+          <p class="witnesses"><span class="tag">witnesses</span> Recomputed: 6840 tris, three materials with 300 metal and 126 roof faces, UVs in 0..1 with zero AABB overlap, outer AABB 1.594×1.594×2.973 m, grounded zmin, 4 iron shoes, rail engage 18 mm, all four side rails tenoned at both ends, both joists bearing 31 mm into deck girts, collar standoff 2 mm, post plumb 0, LOD ratios in band (5.2 COLLAPSE leaner on LOD2), convex collider 150 tris, non-empty glTF. Hygiene all zero. --skip-decimate exits 9; --stray-vert 15; --lift-z/--short-shoes 16; --short-rails/--open-sides/--short-joists 17; --float-band 18; --rake-posts 19.</p>
           <a class="card-link" href="watchtower/">View showcase piece<span class="sr-only"> watchtower</span> <span aria-hidden="true">&rarr;</span></a>
         </div>
       </article>