A close up of a man in a bathtub with a towel on

muscular old man sit soaking inside onsen (half body in water), big balls, wearing fundoshi, bearded, happy expression, facial hair, (view (full body)) detailed face, face, detailed eyes, eyes, really big muscle, bigger muscle, very big muscular, over sized muscle, biggest muscle, big pec muscular, biggest pec muscle, detailed muscle, realistic rendering, CG realistic, 3d realistic, photography, background,

(nsfw:1.5),(bad-image-v2-39000, bad_prompt_version2, bad-hands-5, EasyNegative, NG_DeepNegative_V1_4T, bad-artist-anime:0.7),(worst quality, low quality:1.3), (depth of field, blurry:1.2), (greyscale, monochrome:1.1), nose, cropped, lowres, text, jpeg artifacts, signature, watermark, username, blurry, artist name, trademark, watermark, title, (tan, muscular, loli, petite, child, infant, toddlers, chibi, sd character:1.1), multiple view, Reference sheet, long neck