Stable Diffusion XL Prompt - bio-mech, hydra, concept art, neon noir, leather grain texture, cyberpunk

{
    "camera": "wide-angle, low perspective, dramatic foreshortening",
    "color_palette": [
        "electric purple",
        "chartreuse",
        "charcoal black",
        "steel gray"
    ],
    "composition": "centered, monumental hydra as focal point with expansive negative space around, multi-heads fanned for a symmetrical, poster-ready silhouette",
    "lighting": "neon rim lighting with purple and chartreuse glow, volumetric haze, strong specular highlights on metal",
    "negative_prompt": "low-res, blurry, artifacts, watermark, logo, text, misshapen anatomy, extra limbs, unnatural colors",
    "product_constraints": {
        "background": "scene (dim sci-fi forge with ambient glow)",
        "bleed_safe_area": "keep key art within 85% center area",
        "print_notes": "300 DPI minimum; strong contrast for print; leather grain and metal textures read at scale; suitable for both matte and gloss posters",
        "product_type": "poster"
    },
    "prompt_core": "A colossal bio-mech hydra coils through a dim sci-fi forge, its multiple heads sprouting chrome pistons and sinewy tendrils, clad in leather-grain plating rendered in electric purple and chartreuse under high-contrast concept-art lighting.",
    "render_specs": {
        "aspect_ratio": "1:1",
        "cfg_guidance": "9",
        "model_hint": "SDXL",
        "quality": "ultra",
        "resolution_hint": "4096x4096",
        "seed": "random"
    },
    "style_tags": [
        "bio-mech",
        "hydra",
        "concept art",
        "neon noir",
        "leather grain texture",
        "cyberpunk"
    ],
    "variants": [
        "Twist #1: swap palette to electric indigo and lime with a glossy chrome finish",
        "Twist #2: silhouette-forward variant with extreme backlighting and bold vector-linework",
        "Twist #3: hyper-detailed macro texture emphasis on leather grain and biomechanical surfaces with a subtle holographic shine"
    ]
}