young musician, playing instrument, (12yo), focused expression, short brown hair, casual clothing, jeans, sneakers, holding guitar, strumming chords, sitting on a stool, music room, wooden floor, posters on the wall, acoustic guitar, soft lighting, warm atmosphere, close-up shot, depth of field, realistic textures, detailed fingers positioning, vibrant strings vibration, indoor, serene, high resolution, detailed shadows, ambient light, 3/4 view angle.