ugly, deformed, noisy, blurry, distorted, out of focus, bad anatomy, extra limbs, poorly drawn face, poorly drawn hands, missing fingers, nudity, nude

Tangled, unkempt fur, with knots
Misaligned eyes, heterogeneous colors
Folded, deformed, asymmetrical ears
Broken, crooked, extra-toed paw
Flattened, asymmetrical, misplaced nose
Irregular, discolored, spotted coat
Amputated, shortened, deformed tail
Hanging tongue, with dark spots
Disproportionate body, too thin, with protrusions
Crooked posture, bent, with misaligned limbs