Not to nit pick, you've done a great job as is. However there should be greater elevation for the area entering the Wadi. I was deployed to Sangin Afghanistan back in 2010 to Fob Robinson and Fob Nolay. The Wadi in the area is like a trench the runs through the valley, there were only a few entry points.
http://imgur.com/unLqbLo
Sorry for the bad angle. This is one of the best deployment photos I had in order to show you kind of what I'm talking about. The angle is looking down at an entry point into the Wadi with the back wall of the Wadi shown in the back, the top is cut off by the camera.