The first sketch is what I have been using for a tree stand for the last couple years. The hook at the top beam is to hang a "sling" or hammock type chair from. Without the chair, you can still stand or sit on any of the rungs and easily see and shoot in any direction.
This year, though, I thought maybe I needed a little more secure platform for my fat, aging body. This photo gives you a good idea of what I mean.
