Art style: Y2K Retro.
Full-length view, the entire figure visible from head to feet, standing upright, centered — Koko, a bespectacled botanist cat, a conservative old grump and expert on eco-plants. He is a plump, dignified housecat with plush grey-and-white fur, a rounded belly, and a fluffy tail curled neatly beside his paws. Round wire-rimmed spectacles perch on his broad muzzle above a stern, slightly disapproving expression, whiskers twitching. He wears a tidy knitted brown cardigan with elbow patches over a small collared shirt and a little bow tie, plus rolled corduroy trousers. He stands on soft padded hind paws, one paw clutching a terracotta pot with a leafy green seedling, the other adjusting his glasses. Behind him, a cluttered apartment windowsill crowded with potted herbs and hanging vines in a bright city flat.
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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 "Y2K Retro" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "Y2K Retro". 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 "Y2K Retro" idiom, not in any other medium.
