Japanese man from the back painting a picture in the 16th century in a typical house of the time

(worst quality:2, low quality:2), (deformed, distorted, disfigured), (bad eyes, wrong lips, weird mouth, bad teeth, mutated hands and fingers:1.2), (bad anatomy), wrong anatomy, amputation, extra limb, missing limb, floating limbs, disconnected limbs, mutation, ugly, disgusting, (signature, watermark, username, blurry, artist name), asian