BTW, I think that shot, from an angle that shows nothing but sky through the hole, might be good. It puts all the focus on the texture of the wood around the edge of the hole. If you can, give it a try!
Actually this print is from a few years ago and the tree which had the hole in it was already cut and laying on the ground..so it is no longer available to pose for me :) but umm..thanks for the advice anyways. Have a good one!