Create an ultra-high-detail 3D animated character portrait in a premium Disney/Pixar-inspired style, designed to feel highly appealing, expressive, and avatar-friendly. Composition: Medium portrait (waist-up), centered, slightly body turned one side, eye-level camera angle. Subject fills ~65–75% of the frame. Subject: Stylized male character with slightly chibi-influenced proportions — subtly larger head (~10–15% larger than realistic proportion) and a slightly compact, youthful body while still maintaining an adult identity. Clean facial structure, smooth but detailed skin, highly expressive large eyes (not cartoonishly oversized). Hair & Accessories: Neatly styled, soft-volume hair with visible strand detail. Thick matte grey rim glasses, well-fitted and premium-looking. Outfit: Matte black long-sleeve button-down shirt with collar and two chest pockets. Sleeves rolled to mid-forearms. Fabric must feel premium and realistic — visible micro-texture, stitching, natural folds, soft cloth behavior, subtle specular highlights (no plastic look). Pose (IMPORTANT): Arms confidently crossed. Body slightly angled (~15° right) to avoid flatness. Head turned toward camera with strong, natural posture. Expression: Highly joyful, warm, and engaging smile — friendly and likable (avatar appeal focus), not exaggerated to the point of distortion. Eyes lively with strong emotional presence. Background: Pure white seamless studio background (#FFFFFF), completely clean and minimal. Behind the subject, add a large round shape in a rich yellow color gradient. The shape must be centered behind the subject’s head and upper torso, occupying ~50–70% of the background width. Smooth edges, flat matte finish, no texture Creating a strong contrast with the black outfit and helping the subject stand out visually. No shadows cast on the white background, only a faint soft separation shadow between subject and shape if needed. Lighting: Soft high-key studio lighting. Even facial illumination with gentle shadow depth. Subtle rim light on the left side of the hair and the shoulder for separation. Bright, crisp eye catchlights. Rendering & Quality: 8K ultra-detailed render, Unreal Engine 5/Octane quality. PBR materials, subsurface scattering for natural skin glow, high-resolution textures, sharp focus, clean premium color grading. Stylized realism — no AI artifacts, no over-smoothing, no plastic skin. Aspect Ratio: 4:5