Low-Key Saturn Projection Portrait

Prompt

{   "generation_request": {     "meta_data": {       "task_type": "low_key_projection_mapping_portrait",       "language": "en",       "priority": "highest",       "version": "v1.0_SATURN_PROJECTOR_RAINBOW_LOWKEY"     },     "output": {       "aspect_ratio": "4:5",       "resolution": "high",       "num_images": 4     },     "scene": {       "concept": "a moody low-key portrait using projection mapping as the primary light source",       "environment": "pure black seamless background, no visible room details, no props",       "composition": "3/4 portrait, subject slightly low in frame with negative space above, Saturn positioned behind head like a luminous halo"     },     "subject": {       "person": "adult woman",       "wardrobe": {         "top": "dark minimal top, non-reflective fabric to keep focus on projection"       },       "hair_makeup": {         "hair": "long hair down, natural texture",         "makeup": "minimal, realistic, preserve pores and skin texture"       },       "pose": "head slightly tilted, one hand near ear, relaxed shoulders",       "expression": "calm, dreamy, subtle smile"     },     "projection": {       "content": "glowing {argument name="planetary body" default="Saturn"} with rings",       "placement": "Saturn centered behind head, ring arc extending to the side",       "light_behavior": "rainbow refraction bands across face/arm, soft falloff into shadows",       "notes": "keep projection edges believable; avoid flat sticker look"     },     "camera": {       "shot": "projection-mapped portrait",       "lens_mm": 50,       "aperture": 2.0,       "focus": "sharp on eyes and lips; gentle falloff on hair",       "quality_tags": "photoreal, cinematic, subtle film grain"     },     "lighting": {       "style": "projector as key light + very subtle fill",       "notes": "deep blacks, high contrast, no visible background spill, preserve natural skin texture and catchlights"     },     "color_grade": {       "palette": "deep blacks, saturated cyan/magenta/green rainbow bands, cool planetary blues",       "contrast": "high with controlled highlights",       "effects": "subtle grain, slight halation on brightest projection areas"     },     "negative_prompt": "text, logo, watermark, bright background, HDR, plastic skin, over-smoothed face, cartoon, anime, CGI look, banding artifacts, crushed noisy shadows, extra fingers, deformed ha...