Awww, kitty! and really nice pixel work here, it is. :)
I also like how you still kept the pic in perspective, not making the face the complete center of the picture, but letting the eyes take it all in. For a small face, that's some real good detail, and stuff that I've personally been rather lacking in the ability to do. ^^;
Lovely. Only tip I have for your pixel art.. it could be part style, but I think that if you tried, you could make some of the lines thinner, and a well, use less straight lines and more curves, as in real life, besides buildings and whatnot, few things have perfectly straight lines... y'know?
But, lovely. Awesome, and keep it up. ^_-