So I noticed that my Skipper is a climber. She loves to jump and climb all over the couch. I've been throwing around the idea of constructing a "bunny" tree. I've already started a few mock drawings. Any way, what do you guys think? And should I upholster it with carpet like a regular cat tree? If I don't what do you think would be a good to put down, or should I just leave it with the natural wood?
Here are the cat trees I'm using for inspiration:

