Smart Animated Teenage Boy Portrait

stylized 3D animated portrait of a smart teenage boy with large expressive brown eyes, thick dark eyebrows, black round eyeglasses, swept voluminous brown hair with detailed sculpted strands, friendly slight smile, one hand raised with index finger pointing upward as if explaining an idea, other hand in pants pocket, wearing a light blue button-up shirt with rolled sleeves under a tan knitted sweater vest with ribbed trim, khaki trousers, slim youthful proportions, soft rounded facial features, clean character design, high quality 3D render, smooth clay-like skin, subtle fabric texture on sweater and shirt, centered full-body upper portrait framing from thighs up, plain off-white studio background, soft diffused lighting, gentle shadows, warm neutral color palette, charming educational mood, polished family-friendly animation style, shallow depth of field, crisp details