So I finished my treehouse a month or so back. As a reminder, this was the first thing I have ever built of my own. I did the entire project alone with the exception of a few screws for the roof panels that I wasn't comfortable getting from the ladder.
It was a pretty stupid project to take on in the heat of the Oklahoma summer and for someone that is terrified of heights. It pushed me beyond my limits and allowed me to grow though. First pic is from when I started putting the roof on and the second is completely done. (only 2 of the kids are mine)