Looks good man but speaking from personal experiance, your wood might not stay looking good. Dragon poo makes a geart wood stain and blows to have to clean it out of the wood. I would waterproof all the wood ground. The walls should be just fine. I picked up some plastic sheets at home depot called Coroplast, White corrugatated plastic sheets. Its basically white plastic cardboard stuff. You can cut it easaily with a razorblade and it's too tuff for a Dragon to damage, so theres no risk of them eating it. I use that over my wood then cover in my washed playsand substrate, looks great to me. There are other options too but this seems to be cost effective and easy to do. Good luck with the cage my fellow do it your selfer!