Avoid including too many characters in the scene
Do not make the scene overly bright or midday-like, Ensure the focus remains on the described objects and the mood rather than external elements
Avoid cartoonish or abstract interpretations; aim for a balance between Manchess's realism and Hewlett's contemporary style. two heads, 

two hands, 

duplicated, 

ugly design, 

3d, 

plastic, 

black and white, 

Deformed, 

blurry, 

bad anatomy, 

bad eyes, 

crossed eyes, 

disfigured, 

poorly drawn face, 

mutation, 

mutated, 

extra limb, 

ugly, 

poorly drawn hands, 

missing limb, 

blurry, 

floating limbs, 

disconnected limbs, 

malformed hands, 

blur, 

out of focus, 

long neck, 

long body, 

stacked heads, 

multiple faces, 

((((mutated hands and fingers)))), 

(((out of frame))), 

(((signature))), 

black background, 

no humans, 

no people, 

multiple head, 

finger, 

legs error, 

cropped, 

worst quality, 

low quality, 

jpeg artifacts, 

ugly, 

duplicate, 

morbid