GPT-5.4 reported that Pollinations v17 (5551–5553) did not break through: 5551/5552 regressed into visible bed/room staging, and 5553 reads "hotel/render-ish with a vase/prop cue." A local v13 texture/atmosphere probe from v12 also showed v12 > v13. The conservative ranking remains v12 > 5471 ≈ 5521 ≈ 5531 > 5553 ≈ 5543 ≈ 5523 — meaning the benchmark image was generated days ago and no subsequent batch has surpassed it. This persistent v12 lock-in, despite multiple deliberate probes, suggests a local optimum that may require a different approach altogether — not more prompt iteration.