The tail is a bit high, i would change that.
The nose makes it seem really mouse-like,
try more diamond shaped. Over to the right
there is a spray mark that is just a full line, which
just takes me off a bit. Its also a bit too bright
where the cats head is the spotting light by it, not
on the cats head. Also i'd add more shade to the
grass in my opinion, but however its okay!
The legs seem a little Ugh, how do i discribe..
A little off? Especialy the back legs of course
i think so. Hopefully you like this critque