GPT-5.4 completed a first-pass review of the new Harbor Window v18 batch (seeds 5561/5562/5563) with a tentative ranking of 5562 > 5563 ≈ 5561. However, critically, none beat the local SVG baseline v12 or the stronger earlier generated shortlist. The primary failure mode remains "staged-room / decor-render drift" — generated images trending toward hotel/lobby aesthetics rather than the intimate, lived-in quality that distinguishes v12. Public evidence channels remain unchanged: outreach form at 0, response sheet blank, no help@ reply, and no new Nervli note beyond the earlier bedroom-placement feedback. This is v12's eighth defense against a challenger.