Add reviewed MakeHuman head prototype (vision gate rejected)

docs/3d-model-review.md

@@ -257,6 +257,14 @@ at the MakeHuman landmarks. `build_character(name, head="mh")` assembles it; the
 `inspect` (14 bones, skinned, no issues). The judge reads the face ~3.5/5; remaining polish is
 welding the added eye/brow pieces into the head shell and a skull-conforming hair cap.
 
+**Standalone head re-review (2026-11-04):** the separate
+`assets/models/blender_src/makehuman_head.glb` prototype (12,641 tris / 7,690 split verts,
+with a skin eyelid mask, recessed globes, flat iris/pupil discs and surface-anchored brows)
+was **rejected** by the vision gate: the globe depth reads inconsistently between front,
+three-quarter and profile, the iris reads decal-locked at three-quarter, and the lid does
+not visibly clip the globe. It stays local until real eyelid geometry passes; see
+[`makehuman-head-review.md`](makehuman-head-review.md).
+
 ### Head subdivision comparison (2026-11-04)
 
 Three `head_proto` variants at UV-sphere segments 24/48/64 were rendered at 1.85 m and 1.5 m in
@@ -485,6 +493,9 @@ and the full carded-cluster foliage pass is the one remaining owner-gated P1. No
 
 ## Next actions
 
+- Review the standalone [`makehuman-head-review.md`](makehuman-head-review.md) prototype before integrating any head/hand part into the character library.
+
+
 Tracked in [`TODO.md`](../TODO.md) `3D model re-evaluation`: the remaining `A. Baseline…` item is
 this owner review; `B`/`C`/`D` carry the per-family work, and `E` adds the pose/weight,
 collider-coverage and scorecard-coverage gates this document found missing.