A boy with short brown hair, 16 years, handsome, well defined body

A boy with short brown hair, 16 years, handsome, well defined body, turning his back showing his firmness, big round butt, wearing a swimming suit

CyberRealistic_Negative, (deformed iris, deformed pupils, semi-realistic, cgi, 3d, render, sketch, cartoon, drawing, anime, mutated hands and fingers:1.4), (deformed, distorted, disfigured:1.3), poorly drawn, bad anatomy, wrong anatomy, extra limb, missing limb, floating limbs, disconnected limbs, mutation, mutated, ugly, disgusting, amputation