Art style: Vintage Storybook.
Inside a cavern of black stone and narrow passages, Heracles faces a huge lion lunging through dust and darkness. A medium-wide side angle captures arrows splintering away from the beast's hide while sparks jump from a failed blade strike. Harsh torchlight flickers warm orange against wet rock, swallowed by deep pockets of shadow. The mood is frantic, brutal, and supernatural. Loose pebbles bounce under the impact of the struggle, and the color palette is black, rust red, ember orange, and dirty bronze.
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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 "Vintage Storybook" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "Vintage Storybook". 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 "Vintage Storybook" idiom, not in any other medium.
