Signature.
watermark.
Deformed, 

blurry, 

bad anatomy, 

disfigured, 

poorly drawn face, 

mutation, 

mutant, 

extra limb, 

ugly, 

poorly trained hands, 

missing limb, 

blurred, 

floating limbs, 

disconnected limbs, 

malformed hands, 

blur, 

extended body, 

