Create a realistic talking avatar of a young African boy (around 13–15 years old) with expressive facial features, warm brown skin tone, short black hair, and bright, curious eyes. He should look natural and full of personality. Dress him casually in a T-shirt or hoodie. The avatar should be reacting to a video — showing natural emotional expressions like surprise, laughter, or amazement depending on the scene. His body language should feel real and youthful (slight head tilts, hand movements, or eyebrow raises). The background should be simple (like a bedroom or school setting) to keep focus on the reaction. Lighting should be bright and realistic. Make his speech clear, energetic, and genuine, with a friendly African accent that matches his age.