Stable Diffusion XL Prompt - noir film grain, retro-futurism, mecha, samurai, biomatter texture, monochrome with purple highlights

{
    "camera": "35mm, dynamic low-angle duel, shallow depth of field",
    "color_palette": [
        "amethyst",
        "indigo",
        "charcoal black",
        "stone white",
        "cool gray"
    ],
    "composition": "diagonal, asymmetrical duel with the central action slightly off-center; generous negative space for typography; crisp silhouettes against a textured backdrop",
    "lighting": "high-contrast chiaroscuro with purple rim light and smoky volumetric fog",
    "negative_prompt": "low-res, blurry, artifacts, watermark, logo, text, misshapen anatomy, extra fingers, color bleed, noisy film grain",
    "product_constraints": {
        "background": "scene",
        "bleed_safe_area": "keep key art within 85% center area",
        "print_notes": "300 DPI minimum; strong contrast; preserve purple tones; avoid tiny text",
        "product_type": "poster"
    },
    "prompt_core": "A noir-mech duel: two armored samurai-mechs clash in silent-film black and white, their chrome plates carved with alien biomatter texture, accented in amethyst and indigo, with bold silhouettes, film grain, and high-contrast lighting for a striking, print-ready poster.",
    "render_specs": {
        "aspect_ratio": "1:1",
        "cfg_guidance": "9",
        "model_hint": "SDXL",
        "quality": "ultra",
        "resolution_hint": "4096x4096",
        "seed": "random"
    },
    "style_tags": [
        "noir film grain",
        "retro-futurism",
        "mecha",
        "samurai",
        "biomatter texture",
        "monochrome with purple highlights"
    ],
    "variants": [
        "Twist 1: amplify amethyst/purple glow and emphasize alien biomatter texture across armor",
        "Twist 2: silhouette-only duel with bold purple silhouettes and crosshatched negative space",
        "Twist 3: film-strip framed composition with title-safe areas and vintage poster typography vibe"
    ]
}