Art style: Moody Digital Realism.
A single clean chalk line drawn across a smooth concrete floor, viewed close-up at a low angle. Small pale pebbles are piling steadily against the line from one side, mounding higher until they spill over and bury the mark completely near the far end where the line has vanished under the heap. Soft overhead diffused light casts gentle gray shadows. Quiet, creeping, erosive mood of gradual loss. Palette of cool gray concrete, dusty pale stone, and faint shadow blue.
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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 "Moody Digital Realism" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "Moody Digital Realism". 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 "Moody Digital Realism" idiom, not in any other medium.
