deformed, 
cropped face/head/bust, 
mutated elongated duplicated limbs/extremities/anatomy, 
signatures, 
watermarks, 
censored/blurred/pixelated features, 
missing/too many limbs, 
missing/too many digits, 
misshapen/elongated/malformed limbs/extremities, 
blurred features, 
warped/deformed/mutilated/disfigured anatomy, 
bad proportions, 
malformed/fused extremities/digits, 
bad composition