A cheerful young boy avatar wearing a white hooded sweatshirt featuring a prominent lightning bolt graphic on the chest kangaroo pocket area, displaying a wide, happy smile showing white teeth, and giving a thumbs-up gesture directly toward the viewer. — Tight, centered portrait framing the subject from the chest up within a perfect circular crop, with direct eye contact. — Restricted to primary and bold colors; dominant white, black, dark blue, and bright yellow. — High-key, even studio lighting creating a cheerful, friendly, and approachable mood. — High-contrast, clean graphic design cartoon illustration defined by uniformly thick black outlines and flat, bold color fills. — Incorporate the specific facial features, expression, and eye structure from the provided reference image while maintaining the requested cartoon aesthetic; no gradients or textures. — A flat, bright yellow circular background with a defined, solid dark blue outer border.