Here's a map I've been working on for 2 months. Alot of it is actually done but I want to make sure it ends up exactly as I would like it. Comments Please.
It looks cool but the skybox needs some alpha texture on the ground and the hills looks a little odd, like they are from Dr. Seuss, otherwise it looks cool.
In your third picture your pipe props need to use a different origin for lighting. They look all the sudden dark once they pass under that wall. Try putting a info_lighting infront out in the open infront of them and change the lighting origin on thoes props to that info_lighting. (just in case you didnt know)