Art style: Dark Fantasy.
Snezhna, the white dragon, transforms from human form into a majestic ancient dragon. White scales, blue glow, icy mist, frozen breath, elegant and divine. No extra dragons, cinematic fantasy, ultra detailed.
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FINAL STYLE ENFORCEMENT (this is the authoritative rendering directive — it overrides any style wording elsewhere in the prompt):
Render this image entirely in "Dark Fantasy" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "Dark Fantasy".
Keep the subject, composition, camera angle, lighting direction, and colour palette from the description above — but EVERY surface, skin, fabric, material, and environmental element must be rendered in the "Dark Fantasy" idiom, not in any other medium.
