目标：创建一个受表现力时尚摄影启发的 3x3 肖像拼贴画，利用 FACS（面部动作编码系统）定义每种表情。主体是一位极致美丽的红发绿眼女性，采用智能手机风格的彩色抓拍摄影。
纵横比：1:1
构图：3x3 网格（9 张等大肖像），紧凑的头肩构图，极简间距。主体、灯光需在各面板保持一致，姿势和角度允许细微变化。
主体：成年女性，天然红发（微湿或有纹理感），绿眼且极具表现力，五官深邃柔和，皮肤纹理自然（无过度磨皮）。穿着极简米色低胸背心。
FACS 表情面板详情：
1. 略微咆哮（AU4, AU9, AU10）
2. 调皮吐舌（AU25, AU26, AU19）
3. 手合十的温柔严肃感（AU1, AU2, AU24）
4. 手抚发丝的放松向上凝视（AU5, AU25）
5. 微妙自然的微笑（AU12, AU6）
6. 强烈的咬唇动作（AU4, AU10, AU25）
7. 俏皮鱼脸（AU18, AU22）
8. 惊讶张嘴（AU25, AU26, AU5）
9. 手托脸部的柔和忧郁或疲惫感（AU1, AU15）
视觉风格：社论肖像摄影，全彩，手机抓拍质感。保留可见颗粒、皮肤瑕疵和轻微噪点，中性至微暖色调。
灯光与相机：直闪或简单正面光，产生硬阴影和自然高光。使用手机标准镜头近距离拍摄，呈现手持拍摄的略微不完美感。
质量目标：真实且富有表现力的肖像，高度还原 FACS 表情准确度。
负面约束：非黑白，无影棚完美感，无过度修图，面部需一致，无浓妆，无电影化灯光。
"objective": "Create a 3x3 portrait collage inspired by expressive fashion photography, using FACS (Facial Action Coding System) to define each facial expression. The subject is an extremely beautiful redhead woman with green eyes, captured in candid smartphone-style colored photography",
"aspect_ratio": "1:1",
"composition": {
"layout": "3x3 grid (9 equal portraits)",
"framing": "tight head-and-shoulders portraits",
"style": "clean grid with minimal spacing, similar framing across all panels",
"consistency": "same subject, same lighting, slight variation in pose and angle"
},
"subject": {
"person": "adult woman",
"appearance": {
"hair": "natural red hair, slightly wet or textured",
"eyes": "green eyes, highly expressive",
"beauty": "extreme beauty, sharp yet soft features",
"skin": "natural texture, not over-smoothed"
},
"outfit": {
"top": "low-cut cream tank top",
"style": "minimal, clean"
}
},
"facs_expressions": [
{
"panel": 1,
"action_units": ["AU4 (brow lowerer)", "AU9 (nose wrinkler)", "AU10 (upper lip raiser)"],
"description": "slight snarl expression"
},
{
"panel": 2,
"action_units": ["AU25 (lips part)", "AU26 (jaw drop)", "AU19 (tongue show)"],
"description": "playful tongue out"
},
{
"panel": 3,
"action_units": ["AU1 (inner brow raiser)", "AU2 (outer brow raiser)", "AU24 (lip pressor)"],
"description": "soft serious look with hands together"
},
{
"panel": 4,
"action_units": ["AU5 (upper lid raiser)", "AU25 (lips part)"],
"description": "relaxed upward gaze with hands in hair"
},
{
"panel": 5,
"action_units": ["AU12 (lip corner puller)", "AU6 (cheek raiser)"],
"description": "subtle natural smile"
},
{
"panel": 6,
"action_units": ["AU4 (brow lowerer)", "AU10 (upper lip raiser)", "AU25 (lips part)"],
"description": "intense biting lip expression"
},
{
"panel": 7,
"action_units": ["AU18 (lip pucker)", "AU22 (lip funneler)"],
"description": "playful fish face"
},
{
"panel": 8,
"action_units": ["AU25 (lips part)", "AU26 (jaw drop)", "AU5 (upper lid raiser)"],
"description": "surprised open-mouth expression"
},
{
"panel": 9,
"action_units": ["AU1 (inner brow raiser)", "AU15 (lip corner depressor)"],
"description": "soft melancholic or tired expression with hand on face"
}
],
"visual_style": {
"genre": "editorial portrait photography",
"color": "full color (not black and white)",
"quality": "smartphone candid",
"texture": [
"visible grain",
"natural skin imperfections",
"slight noise"
],
"color_tone": "neutral to slightly warm tones"
},
"lighting": {
"style": "direct flash or simple frontal lighting",
"effect": "slight harsh shadows, natural highlights, candid feel"
},
"camera": {
"device": "smartphone",
"lens": "standard phone lens",
"distance": "close portrait distance",
"feel": "handheld, slightly imperfect framing"
},
"quality_targets": {
"look": "authentic, expressive portrait collage",
"focus": "facial expressions driven by FACS accuracy",
"consistency": "same subject and lighting across all panels"
},
"negative_constraints": [
"no black and white",
"no studio perfection",
"no over-retouched skin",
"no inconsistent face",
"no heavy makeup",
"no cinematic lighting"
]
}
