I like the way the lacy curtain sort-of morphs into the branches. Would have been a little better if both cats had sat up, but then THEY would be cooperating with YOU and we know that's not allowed...
Very good exposure and detail. My nit is that the L side is more interesting than the R, but the R upstages it by being so much brighter. I'd have been tempted to crop this to a vertical and only include the L window, as the balled up cat and bouse in the bg don't add much to your composition. There is a nice little gradient to the sky there, though.
Awesome use of contrast and silhouette. I love the reflections on the table. My only suggestion is that you went a little further one way or the other on your angle ... that is, go for symmetry and shoot it straight on, or turn the camera a little more to show your intent slightly crooked composition. Great submission.
I'm assuming you wanted to just show the sillhouette in this shot, but personally, I'd prefer more detail. I do like the angle, the reflection on the table and the typical cat pose. The curtains work well for this shot, too, although I think they should've been pulled close on the right.