Cinematic Royal Portrait of Billie Eilish in Powder-Blue Gown

Prompt

{   "prompt_metadata": {     "title": "Cinematic Royal Portrait: Ana de Armas",     "version": "2.0",     "generation_type": "Photorealistic Cinematic",     "aspect_ratio": "3:4",     "quality_preset": "Ultra-High-Resolution / 8K / RAW",     "aesthetic_style": "Fairytale Royal / Ethereal Elegance"   },   "subject": {     "identity": {       "name": "{argument name="subject name" default="Billie Eilish"}",       "likeness_fidelity": "100% accurate facial features",       "ethnicity_match": "Authentic skin tone and bone structure"     },     "physical_features": {       "eyes": {         "color": "Deep brown",         "details": "Luminous catch-lights, sharp focus on iris texture"       },       "complexion": {         "texture": "Visible skin pores, natural imperfections, luminous warm glow",         "finish": "Soft-focus dewiness"       },       "hair": {         "style": "Intricate blonde updo",         "texture": "Soft, loose ringlet curls framing the face",         "detail": "Fine individual strands visible, silk-like sheen"       },       "makeup": {         "style": "Natural / Minimalist",         "details": "Soft peach blush, nude glossy lips, light mascara"       }     },     "pose": {       "composition": "Close-up portrait",       "stance": "Graceful and poised, slight tilt of the head",       "expression": "Serene, regal, and enigmatic"     }   },   "wardrobe": {     "garment": "Grand {argument name="gown color" default="Powder-Blue"} Ball Gown",     "bodice_details": {       "type": "Structured corset",       "neckline": "Off-shoulder ruffled sleeves",       "embellishments": "Hand-stitched 3D floral appliqués"     },     "skirt_details": {       "material": "Layered silk tulle",       "volume": "Voluminous and airy",       "translucency": "Subtle light-filtering through fabric layers"     }   },   "environment": {     "location": "Grand Palace Interior",     "architecture": {       "primary_element": "Wide marble staircase",       "material": "Polished white Calacatta marble with gold veining",       "backdrop": "Ornate balustrades, distant vaulted ceilings"     },     "atmosphere": {       "vibe": "Dreamy, luxurious, and timeless",       "depth": "Extreme shallow depth of field (bokeh background)"     }   },   "lighting_and_color": {     "lighting_scheme": {       "primary_source": "Cinematic soft-box simulation",       "secondary_source": "W...