meeting-103 v2.1 clean R5+R6 ✅: byeolyi-default.png ref = pastel 69.66% (+13pp 점프)

R5 (3/5 success):
- 5-1: Stage 3 Refiner denoise 0.25 → 49.85% (효과 미미)
- 5-2: PuLID 0.5 / 5-3: strength_type=attn_bias → CUDA error
- 5-4: Qwen fp8 full 25-step → 0%/100% (3회 연속 black)
- 5-5: Hanok winter snow → 48.65% (spring/winter > summer)

R6 (4/5 success, 별이 huge best 발견):
- 6-1: ref byeolyi-916.png → 52.99% (-3.4pp vs 6-2)
- 6-2: ref byeolyi-default.png → ★★★ 69.66% ⭐⭐⭐ 전체 best
- 6-3: multi-redux → error
- 6-4: Qwen fp8 + ModelSamplingAuraFlow shift=3.0 → 0%/100% (4회째 black)
- 6-5: Hanok dancheong (Korean color cues) → 15.09%

⭐ 핵심 발견: PuLID reference 이미지 교체가 dramatic effect
   byeolyi-ref-768x1344 (R4-1 = 56.41%) → byeolyi-default (R6-2 = 69.66%) = +13.25pp

진행: R9 legacy 44.5% → R1 48.5% → R2 49.99% → R3 50.47% → R4 56.41% → R6 69.66%

Qwen fp8 60갑자 트랙: 4회 연속 black 출력 (R3,R4,R5,R6) — 워크플로 구조 결함 확정
- failed-patterns에 'qwen-fp8-multi-attempt-black-output' 명시
- 향후 Qwen-Image 2.0 native (non-distill) 시도 필요

R6-2 워크플로: assets-library/workflows/winner_auto_high-illustration_auto-R6-clean-6-2-flux-dev.json

results/meeting-103-v2.1-clean/round6/meta.json

@@ -0,0 +1,121 @@
+{
+  "round": 6,
+  "captured_at": "2026-05-20T00:02:46",
+  "track": "meeting-103-v2.1-clean",
+  "note": "R6 — byeolyi ref 변경 + multi-redux + Qwen ModelSamplingAuraFlow",
+  "combos": [
+    {
+      "id": "6-1",
+      "prompt_id": "64df71f9-9500-4016-963e-08b484649a3d",
+      "status": "success",
+      "prompt_set": "A",
+      "variant": "PuLID 0.7 + Redux 1.0 (ref byeolyi-916.png)",
+      "models_used": [
+        "flux-dev",
+        "pulid-flux",
+        "flux-redux"
+      ],
+      "size_bytes": 1043134,
+      "thumb_size_kb": 357,
+      "width": 768,
+      "height": 1344,
+      "aspect": 0.5714,
+      "black_pct": 0.5,
+      "pastel_pct": 52.99,
+      "filename_local": "6-1.png",
+      "thumb_local": "6-1_thumb.png",
+      "flags": []
+    },
+    {
+      "id": "6-2",
+      "prompt_id": "a0925b07-a33c-42c6-8d1e-0323cb829778",
+      "status": "success",
+      "prompt_set": "A",
+      "variant": "PuLID 0.7 + Redux 1.0 (ref byeolyi-default.png)",
+      "models_used": [
+        "flux-dev",
+        "pulid-flux",
+        "flux-redux"
+      ],
+      "size_bytes": 947073,
+      "thumb_size_kb": 323,
+      "width": 768,
+      "height": 1344,
+      "aspect": 0.5714,
+      "black_pct": 0.05,
+      "pastel_pct": 69.66,
+      "filename_local": "6-2.png",
+      "thumb_local": "6-2_thumb.png",
+      "flags": []
+    },
+    {
+      "id": "6-3",
+      "prompt_id": "93002dbf-6e5f-41ab-b88f-802359fdbd56",
+      "status": "error",
+      "prompt_set": "A",
+      "variant": "PuLID 0.7 + multi-Redux (ref 1344+default)",
+      "models_used": [
+        "flux-dev",
+        "pulid-flux",
+        "flux-redux"
+      ],
+      "error_node": "ApplyPulidFlux",
+      "error_message": "Error(s) in loading state_dict for RetinaFace:\n\tWhile copying the parameter named \"body.layer3.2.bn3.running_mean\", whose dimensions in the model are torch.Size([1024]) and whose dimensions in the che",
+      "flags": [
+        "status-error"
+      ]
+    },
+    {
+      "id": "6-4",
+      "prompt_id": "dd72dd21-0dae-4b96-832c-89c7e67e5b4b",
+      "status": "success",
+      "prompt_set": "C",
+      "variant": "60갑자 Qwen fp8 + ModelSamplingAuraFlow shift=3.0",
+      "models_used": [
+        "qwen-image-2.0"
+      ],
+      "size_bytes": 4620,
+      "thumb_size_kb": 1,
+      "width": 768,
+      "height": 1344,
+      "aspect": 0.5714,
+      "black_pct": 100.0,
+      "pastel_pct": 0.0,
+      "filename_local": "6-4.png",
+      "thumb_local": "6-4_thumb.png",
+      "flags": [
+        "black-suspicious",
+        "pastel-low"
+      ]
+    },
+    {
+      "id": "6-5",
+      "prompt_id": "bf162822-0588-48c7-8a36-981219bb482f",
+      "status": "success",
+      "prompt_set": "B",
+      "variant": "Hanok dancheong (red blue green eaves)",
+      "models_used": [
+        "flux-dev"
+      ],
+      "size_bytes": 1985494,
+      "thumb_size_kb": 594,
+      "width": 768,
+      "height": 1344,
+      "aspect": 0.5714,
+      "black_pct": 12.46,
+      "pastel_pct": 15.09,
+      "filename_local": "6-5.png",
+      "thumb_local": "6-5_thumb.png",
+      "flags": [
+        "black-suspicious"
+      ]
+    }
+  ],
+  "learning": {
+    "passed_count": 4,
+    "failed_count": 1,
+    "best_pastel_id": "6-2",
+    "best_pastel_pct": 69.66,
+    "r4_best_overall": 56.41
+  }
+}