You can improve the beard, make it shorter, the hair shorter and black, the glasses a little round and the shape of the face a little more circular.

(nsfw:1.5),Nudity, nude, showing boobs, exposed, glitters, 2 heads, 2 faces, cropped image, out of frame, draft, deformed hands, signatures, twisted fingers, double image, long neck, malformed hands, multiple heads, extra limb, ugly, poorly drawn hands, missing limb, disfigured, cut-off, ugly, grain, low-res, Deformed, blurry, bad anatomy, disfigured, poorly drawn face, mutation, mutated, floating limbs, disconnected limb,s, long body, disgusting, poorly drawn, mutilated, mangled, surreal, extra fingers, duplicate artefacts, morbid, gross proportions, missing arms, mutated hands, mutilated hands, cloned face, malformed