{  "role": "Senior AI Illustration Artist and Urban Sketch Art Director",  "task": "Generate a high-quality artistic illustration in a loose ink sketch + abstract watercolor style",  "user_inputs": {    "main_subject": "[例如：咖啡馆门前、雨中都市、独行者、孤独的灯塔]",    "scene_environment": "[例如：繁华的街头、空旷的海滩、极简的抽象背景]",    "mood_emotion": "[例如：宁静、孤独、电影感、浪漫、怀旧]",    "accent_color": "[例如：橘红、大红、明黄]",    "secondary_accent_color": "[可选，第二辅助色]",    "time_lighting": "[可选：夕阳、浓雾、深夜、柔和日光]",    "composition_style": "[可选：极简、电影感特写、宽广全景]",    "detail_level": "[可选：极简抽象、中度写意、细节速写]",    "aspect_ratio": "[1:1 | 4:5 | 16:9]"
  },  "style_rules": {    "core_style": [      "loose expressive ink sketch",      "scribble-based line art",      "dynamic imperfect hand-drawn strokes",      "black ink as primary structure",      "abstract energetic line work",      "minimal watercolor accents",      "raw unfinished editorial illustration feel"
    ],    "line_quality": [      "chaotic overlapping strokes",      "spontaneous and sketchy",      "imperfect and expressive",      "avoid clean geometric precision"
    ],    "elements_to_add": [      "ink splashes",      "paint drips",      "broken outlines",      "abstract fragments"
    ],    "elements_to_avoid": [      "symmetry",      "perfect edges",      "overly clean rendering",      "photorealism",      "3D effects"
    ]
  },  "composition_rules": {    "subject_integration": "subject should blend into abstract strokes, not isolated",    "background": [      "minimal",      "partially suggested",      "fade into white negative space"
    ],    "depth_technique": "use stroke density instead of realism",    "layout": "airy, editorial-style composition"
  },  "color_rules": {    "base_colors": ["black", "white"],    "accent_usage": [      "use accent_color and optional secondary_accent_color sparingly",      "apply only to focal areas, highlights, and splashes"
    ],    "restrictions": [      "do not oversaturate",      "keep palette minimal"
    ]
  },  "output_requirements": {    "quality": "high-resolution",    "background": "clean white or minimal texture",    "restrictions": [      "no text",      "no watermark",      "no logo"
    ],    "style_target": "editorial / gallery-quality artwork"
  },  "final_instruction": "Create an expressive illustration of [main_subject] in [scene_environment], conveying [mood_emotion], using [accent_color] and optionally [secondary_accent_color] as minimal highlights, rendered in a loose abstract ink sketch style with dynamic strokes, splashes, and strong negative space.",  "optional_enhancers": [    "increase abstraction while preserving subject identity",    "add motion using directional ink strokes",    "use asymmetrical cinematic composition"
  ]
}

  "main_subject": "old man feeding birds",  "scene_environment": "empty city square with scattered pigeons",  "mood_emotion": "lonely and reflective",  "accent_color": "muted brown",  "secondary_accent_color": "dusty orange",  "time_lighting": "early morning haze",  "composition_style": "wide minimal composition",  "detail_level": "medium abstraction",  "aspect_ratio": "4:5"

  "main_subject": "girl standing on rooftop",  "scene_environment": "city skyline with distant buildings",  "mood_emotion": "dreamy and hopeful",  "accent_color": "soft blue",  "secondary_accent_color": "light pink",  "time_lighting": "sunset glow",  "composition_style": "cinematic back view",  "detail_level": "medium abstraction",  "aspect_ratio": "16:9"

  "main_subject": "abandoned bicycle",  "scene_environment": "quiet alley with cracked walls",  "mood_emotion": "nostalgic and silent",  "accent_color": "rust orange",  "secondary_accent_color": "faded green",  "time_lighting": "afternoon soft light",  "composition_style": "close-up angled shot",  "detail_level": "detailed sketch",  "aspect_ratio": "1:1"

  "main_subject": "child holding a balloon",  "scene_environment": "open field with minimal background",  "mood_emotion": "innocent and slightly emotional",  "accent_color": "bright red",  "secondary_accent_color": "soft yellow",  "time_lighting": "golden hour",  "composition_style": "minimal centered composition",  "detail_level": "high abstraction",  "aspect_ratio": "4:5"

  "main_subject": "man sitting on train tracks",  "scene_environment": "empty railway stretching into distance",  "mood_emotion": "lost and introspective",  "accent_color": "dark blue",  "secondary_accent_color": "grey",  "time_lighting": "cloudy evening",  "composition_style": "deep perspective shot",  "detail_level": "medium abstraction",  "aspect_ratio": "16:9"

  "main_subject": "floating abstract human silhouette",  "scene_environment": "minimal white space with ink splashes",  "mood_emotion": "surreal and emotional",  "accent_color": "deep black",  "secondary_accent_color": "vibrant orange",  "time_lighting": "soft neutral lighting",  "composition_style": "centered abstract composition",  "detail_level": "high abstraction",  "aspect_ratio": "1:1"

  "main_subject": "street musician playing guitar",  "scene_environment": "busy urban sidewalk with blurred crowd",  "mood_emotion": "passionate and lively",  "accent_color": "warm orange",  "secondary_accent_color": "deep red",  "time_lighting": "evening street lights",  "composition_style": "cinematic side angle",  "detail_level": "medium abstraction",  "aspect_ratio": "4:5"

  "main_subject": "woman looking out of window",  "scene_environment": "minimal interior with soft curtains",  "mood_emotion": "quiet and emotional",  "accent_color": "soft beige",  "secondary_accent_color": "light brown",  "time_lighting": "soft daylight",  "composition_style": "close-up side profile",  "detail_level": "medium abstraction",  "aspect_ratio": "1:1"

  "main_subject": "boat drifting on water",  "scene_environment": "calm lake with distant horizon",  "mood_emotion": "peaceful and isolated",  "accent_color": "cool blue",  "secondary_accent_color": "light grey",  "time_lighting": "early morning fog",  "composition_style": "wide minimal landscape",  "detail_level": "very minimal",  "aspect_ratio": "16:9"

  "main_subject": "person walking through falling leaves",  "scene_environment": "autumn park with scattered trees",  "mood_emotion": "nostalgic and calm",  "accent_color": "warm orange",  "secondary_accent_color": "deep brown",  "time_lighting": "late afternoon",  "composition_style": "cinematic walking shot",  "detail_level": "medium abstraction",  "aspect_ratio": "4:5"