Martin, I like the way the OOF foreground and more OOF background cement this squirrel so strictly into the space. I'm also a sucker for greens. Just love them. Well framed, well exposed, nicely done. Whether the in-focus small tuft of leaves in front of the squirrel adds to the comp or detracts from it is a piece of personal opinion. In my case, I'd view one as is alongside one with the leaves cloned out and see which I liked the best.
I love the tail, the addition of vegetation and the OOF foreground....all very nice! However, I do feel that it is photographed a bit too tight. It might work better with slightly more space on bottom and top. Great shooting angle!
With the the OOF FG and the OOF BG similar it has the effect of isolating the subject and giving it strong interest. A little tight on the crop as mentioned by Jasper.. Overall very nice.