Look at those whiskers! So cute.
Would like to see less intense light on the face and more light in the eyes. Different positioning and/or different lighting conditions will help.
I'm not very found of cats, but this one looks very beautiful. A bit oversharpened though (artifacts on his "moustache" have no clue how it's called in english LoL)
This one had potential, but the blown highlight on the nose makes the face look almost deformed. The nose blends right in with the white of the face. Beautiful cat, and great composition. Eyes look like they could have been amazing. Harsh lighting is the only real problem here.