Art style: Watercolor.
2D hand-drawn watercolor anime style, 1990s retro shoujo manga illustration, soft pastel watercolor washes, delicate thin lineart, warm sunlight, gentle paper texture, vertical 9:16. BRAND: blue '4Life' logo on white hard hat, '4Life' name tag on chest, green toolbox. TEXT RULE: the only allowed text in frame is '4Life' and '4Life COLLAGEN'. No watermarks. The cute chubby egg-shaped handyman stands smiling warmly at the open apartment door, holding a green metal toolbox, sunny hallway, cracked plaster walls.
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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 "Watercolor" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "Watercolor". 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 "Watercolor" idiom, not in any other medium.
