unrealistic

Ugly

Artificial looking 

Duplicate

multiple view

Tiling

Poorly drawn hands

Poorly drawn feet

Poorly drawn face

Out of frame 

Cropped 
Mutation

Mutated

Extra limbs

Extra legs

Extra arms

Disfigured

Deformed

Cross-eye

Body out of frame

Blurry

Bad art

Bad anatomy

Blurred

Watermark

Grainy

reference sheet 