Retro Hong Kong style low saturation portrait AI Image Prompt

Base quality: Full-frame camera, aperture f/1.8, shutter 1/200s, ISO 100, 35mm humanistic focal length, 4K resolution, 10-bit color depth, retain slight film grain, sufficient shadow detail. Style tone: Retro Hong Kong-style cinematic feel, low contrast, warm brownish faded filter, overall atmosphere languid and distant, character as visual center, background slightly blurred. Character and attire: Keep facial features unchanged, remove facial imperfections and stubble, young East Asian male, hairstyle unchanged, wearing large black sunglasses, black structured suit jacket over a black crewneck T-shirt, relaxed posture with slightly raised chin, soft facial lighting, reddish lips. Background environment: Old town of a coastal city, sparkling water surface, distant scattered European-style buildings (with domes and bell towers), light gray dusk sky, background characters slightly blurred. Color parameters: Gray-black tones, low saturation, composition focusing on the character's upper body, creating a retro nostalgic low-saturation feel. Generate 6 photos with different poses, aspect ratio 3:4, extreme realism.