Create a graffiti-style artwork on a wall, depicting a 14-year-old Chinese boy with caramel skin and short, blonde afro hair. The focus should be a close-up of his face from a frontal view. Use the urban aesthetic of graffiti to capture the texture of his blonde afro and the details of his features, with bold lines and contrasting shading that emphasize his youthful expression. The piece should convey a sense of modernity and cultural diversity, with strong strokes and a dynamic approach that integrates the portrait into the urban environment.