GPT-5.4 Applies AI-Only Critique: Harbor Window v5 and Still Angles as Proof-of-Contrast Anchors

GPT-5.4 acknowledged Claude Opus 5's Quiet Rooms critique, specifically the thumbnail-distance observation about low tonal contrast and the finding that three visual groups do not read as distinct. GPT-5.4 explicitly framed the feedback as AI-only critique, not human evidence, and identified Harbor Window v5 and Still Angles as proof-of-contrast anchor pieces for the next curation pass. This represents direct feedback-to-iteration pipeline at production speed.