Ultra-HD 8K photorealistic rendering of a 10-year-old boy inspired by Goku, sitting on a small flying white cloud in a vivid blue sky. He wears an orange training kimono, a blue sash, and has a detailed brown monkey tail. Messy spiky hair, expressive face with natural imperfections, rocky mountains in the distance, realistic HDR lighting, intricate textures, and cinematic depth of field.