I am proud to say that the wall is completed! Fence posts are sunk, and fence building will commence this weekend, much to Gideon's dismay (he rather likes launching off of the wall into Russ and Sandy's yard).
After Brett & Chip sunk the fence posts, they began working on moving rock for another retaining wall of sorts. They built a little staircase from our bottom terrace to the bottom landing, as well. Our yard is slowly but surely beginning to look like something!