Stable Diffusion XL Prompt - bio-mech, hydra, iridescent-silver-indigo, antimatter-sparks, greek-vase-painting, black-figure-influence

{
    "camera": "front-facing, urn-frame portrait, close-up on heads and necks",
    "color_palette": "iridescent silver, indigo, ivory, charcoal, electric blue",
    "composition": "centered urn-frame composition; dominant hydra centered; generous negative space; symmetrical meander borders",
    "lighting": "dramatic ambient with soft directional light, metallic gleam, subtle rim glow",
    "negative_prompt": "low-res, artifacts, extra fingers, watermark, logo, text, blur, misshapen anatomy, disjointed limbs",
    "product_constraints": {
        "background": "scene",
        "bleed_safe_area": "keep key art within 85% center area",
        "print_notes": "avoid tiny text; 300 DPI; strong contrast on metallics; promote print-ready sharp edges",
        "product_type": "poster"
    },
    "prompt_core": "A colossal bio-mech hydra coils inside a classical white-ground vase frame, its iridescent silver and indigo armor glimmering as antimatter sparks crackle along segmented necks, rendered in a bold Greek vase painting silhouette.",
    "render_specs": {
        "aspect_ratio": "3:4",
        "cfg_guidance": "9",
        "model_hint": "SDXL",
        "quality": "ultra",
        "resolution_hint": "4096x4096",
        "seed": "random"
    },
    "style_tags": [
        "bio-mech",
        "hydra",
        "iridescent-silver-indigo",
        "antimatter-sparks",
        "greek-vase-painting",
        "black-figure-influence"
    ],
    "variants": [
        "Neo-black-figure: bold black silhouettes with iridescent silver-indigo highlights and antimatter sparks",
        "Red-figure glow: interiors rendered in indigo-red glow with silver armor outlines and fluid linework",
        "White-ground delicacy: pale ivory base with fine silver-indigo tracery and restrained sparking accents"
    ]
}