A young boy, 12 years old, with short black hair, wearing a

a young boy, 12 years old, with short black hair, wearing a , standing in a simple white background, with a serious, expressionless face and a damaged tail, (best quality, 8k, masterpiece, ultra-detailed, realistic, photorealistic:1.37), (1 boy, alone, uniform, white collar:1.5), (damaged, expressionless:1.5), (simple background, white background, lots of empty space, full body:1.5)

worst quality, low quality, bad anatomy, bad hands, bad body, missing fingers, extra digit, fewer digits