WOW....Will hunt for food.....it looks very good. As a fabricator by trade, your detail on the framing walls alone is exceptional....and I admire the washer, and screw theory, not just staples....I know the feeling with the lets throw a coop together....after 2 1/2 months, and stopped keeping track after $600, I cant BEGIN to figure out when to "break even"...LOL....just another expensive hobby right...I have my share of them....
I thought the "tree house" had a dual purpose at first sight...one that goes along with your avatar....cant really see the yard, but seems you can get a clear shot...
Congrats, and good luck.
TNT