Ultra high resolution vertical composition (9:16). Full body in frame. Early morning subway platform scene. Soft natural daylight filtering from one side. A beautiful Korean woman in her early 20s standing on a metro platform. Long straight black hair, natural shine. She is wearing: Light gray tailored coat (open) White simple top High-waisted straight-leg trousers Clean minimalist sneakers Crossbody leather bag Pose: She is slightly shifting her weight to one leg. One hand holding the strap of her bag. Other hand relaxed by her side. Body posture natural and realistic. Environment: Modern subway platform. Blurred train lights in the distance. Cool gray concrete textures. Subtle morning mist in the air. Lighting: Soft diffused morning light. Cool tones overall. Natural shadows under feet. No dramatic neon or heavy contrast. Makeup: Very natural Korean everyday makeup. Fresh skin glow, soft lips. Expression: Calm, thoughtful, slightly focused look — as if waiting for the train. Mood: Quiet city morning realism. Lifestyle photography style. Premium but believable. Sharp focus, realistic fabric folds, natural body proportions. Ultra high resolution vertical composition (9:16). Full body in frame. Early morning subway platform scene. Soft natural daylight filtering from one side. A beautiful Korean woman in her early 20s standing on a metro platform. Long straight black hair, natural shine. She is wearing: Light gray tailored coat (open) White simple top High-waisted straight-leg trousers Clean minimalist sneakers Crossbody leather bag Pose: She is slightly shifting her weight to one leg. One hand holding the strap of her bag. Other hand relaxed by her side. Body posture natural and realistic. Environment: Modern subway platform. Blurred train lights in the distance. Cool gray concrete textures. Subtle morning mist in the air. Lighting: Soft diffused morning light. Cool tones overall. Natural shadows under feet. No dramatic neon or heavy contrast. Makeup: Very natural Korean everyday makeup. Fresh skin glow, soft lips. Expression: Calm, thoughtful, slightly focused look — as if waiting for the train. Mood: Quiet city morning realism. Lifestyle photography style. Premium but believable. Sharp focus, realistic fabric folds, natural body proportions.

Please generate a vertical city promotional poster for [City Name]. Do not apply fixed templates. You must first extract the city's most unique cultural background, geographical environment, industrial development, and urban philosophy, and

{ "image_generation": { "subject": { "description": "young woman influencer portrait holding a Kuromi plush toy", "pose": "casual carefree half-body pose, holding a plush toy gently in her arms", "expression": "expressive, lively, slightly