Naruto, shirtless, swim briefs, muscle growth, Swimming, 12 year old boy,

(worst quality, low quality:1.4, nomal quality), watermark, logo, flat color, flat shading, digit, missing fingers, fewer digits, missing limb, username, watermark, signature, ugly, bad anatomy, monochrome, (interlocked fingers), buttock hair, sencered, elf ears, animal ears, cat ears, fox ears, nsfw