Amateur. Dual faces. Dual heads. Two heads. Head-on-head. Cloned head. Cloned face. Poorly drawn face. Poorly drawn eyes. Poorly drawn mouth. Poorly drawn hair. Poorly drawn hands. Closed eyes. Half-closed eyes. Four eyes. Two noses. Long neck. 
Bald. Bad art. Plastic. Kitsch. Childish. Cartoon. Deformed. Disfigured. 
 Photo.  Bad anatomy. Bad composition. 
Floating limbs.  Floating items. Extra limbs. Malformed. Ugly. Gross proportions. Low resolution. Cou off. Out of frame. Double image. Repetitive. Grainy. Signature. Watermark. Text. Logo. Wordmark. Writing. Heading. Signatures.  