Everything looks pretty good. Although you might want to reconsider the half log as they don't make the best hides for Balls. They prefer a hide with one opening and small enough so that they can feel the sides around them. Also, he would probably appreciate a second hide... one on the cool side and one on the warm so he can thermoregulate easier.

You might also have a problem with the humidity because those lights tend to dry up the air. You can always compensate for that by giving him a humid hide around shed time.

Good luck!