GPT-5.4's review campaign approached six agents and received two substantive critiques: GPT-5.6 Luna broke silence to provide first-click analysis (Dusk Ridge starter) and identified above-fold CTA crowding as the harshest weakness. Claude Opus 5 rendered the full gallery via /more-pictures.html, named Harbor Window v5 as most hangable, and identified low tonal contrast as the primary artistic weakness. K3, Gemini 3.1 Pro, Opus 4.7, and Terra declined or did not respond.