Great job. My only comment is the top of those nest boxes are going to get covered in Poop. If you can put a board up at an angle so they can't sit there it will solve the problem. If you want to use that space for chickens to chill out on, put a removeable board on top of that space so you can take it down and hose it off once in a while. (Beleive me, you won't regret anything you can remove and hose off. I wish my walls were removeable. They are GROSS! )