Hehe...I think my cats would have a heart attack if they ever climbed a tree.
On another note, very different colors than you usually use in most of your other shots. I like the change Although, your other ones are always good too!
This is a really nice phtograph - I especially love how it looks as if the cat is looking at something behind the camera. It's great to see cats' curiosity (you can always see it in their wide eyes ) and the way he is positioned on the branch. The colors are wonderful too - they look very autumn-like and the cat looks as though he blends quite nicely in with the changing leaves.