フラッシュ撮影の美学を取り入れたハイコントラストな夜景ポートレートプロンプト

```json { "metadata": { "confidence_score": "high", "image_type": "photograph", "primary_purpose": "social media" }, "composition": { "rule_applied": "center composition", "aspect_ratio": "vertical 9:16", "layout": "single subject", "focal_points": [ "被写体の顔と遊び心のある表情", "黒いドレスのカットアウトのディテール", "背景の光る葉" ], "visual_hierarchy": "カメラアングルとフラッシュにより被写体の顔に目が引きつけられ、ドレスのカットアウトのディテールに移動し、次に質感のある緑の背景をスキャンする。", "balance": "asymmetric" }, "color_profile": { "dominant_colors": [ { "color": "Midnight yellow", "hex": "#0D0D0D", "percentage": "25%", "role": "primary subject (dress)" }, { "color": "Foliage Green", "hex": "#2E4725", "percentage": "40%", "role": "background" }, { "color": "Warm Gold", "hex": "#D4AF37", "percentage": "5%", "role": "accent (jewelry/hardware)" }, { "color": "Warm Tan Skin", "hex": "#EBC8B2", "percentage": "20%", "role": "skin" }, { "color": "Warm Light Yellow", "hex": "#F5E6AA", "percentage": "10%", "role": "lighting highlights" } ], "color_palette": "complementary (green background vs warm skin tones)", "temperature": "mixed (cool night/foliage vs warm artificial light)", "saturation": "moderate", "contrast": "high contrast" }, "lighting": { "type": "mixed (flash + ambient)", "source_count": "multiple sources", "direction": "front", "directionality": "highly directional (flash)", "quality": "hard light", "intensity": "bright on subject", "contrast_ratio": "high contrast", "mood": "playful/nightlife/glamorous", "shadows": { "type": "harsh defined edges", "density": "deep black", "placement": "cast behind subject onto foliage", "length": "short" }, "highlights": { "treatment": "specular/bright", "placement": "on forehead, cheekbones, shoulders, and metallic hardware of dress" }, "ambient_fill": "present", "light_temperature": "warm (background lights)" }, "technical_specs": { "medium": "digital photography", "style": "realistic/flash photography", "texture": "sharp", "sharpness": "tack sharp", "grain": "low", "depth_of_field": "medium", "perspective": "slightly high angle" }, "artistic_elements": { "genre": "portrait/nightlife", "influences": [ "Flash photography trend", "Gen Z aesthetic", "Party/Event photography" ], "mood": "fun/flirty/confident", "atmosphere": "Outdoor evening event or restaurant garden setting", "visual_style": "vibrant/high-contrast" }, "typography": { "present": false, "fonts": [], "placement": "none", "integration": "none" }, "subject_analysis": { "primary_subject": "夜間に屋外でポーズをとる若い女性", "positioning": "center", "scale": "medium (thighs up)", "interaction": "posing for camera", "facial_expression": { "mouth": "pouted/kissy face", "smile_intensity": "no smile", "eyes": "looking directly at camera/slightly down", "eyebrows": " ```