The compostion is lacking in interest. Try more off center and from a different and more interesting perspective. In general, shots of animals on the ground from the human eye level are difficult to compose in an interesting way.
cat pictures more often than not leave me cold, but not this one - very very nice! wonderful composition, lighting and texture... could've been a little larger, up to 640 on the tall side... 10.
The space above the cat isn't all that interesting, but it looks like you have some nice contrasts and detail happening in the leaves at the bottom, and some nice tonal range in the tiles. I think a tighter shot focusing from the cat down would have been more interesting.
I do not object to cat photographs -- in fact I am a cat-lover. And I think you had a great opportunity here with the cat's "attitude" and leaves with the lines in the bricks. This is one of those occasions where I think uring the rule of thirds and placing the cat on one of the interestions would have worked nicely. I would have rated it higher with a better composition, but do like it :)