I am a mapper for the New HL:2 Zombie Mod: Brain Bread: Source, I am currently working on "Rooftops" and "Forward". View it on the Official Brain Bread: Source Page. I also make grapics with Photoshop and very skilled with it!
Rooftops v.2
By: Daywalker
You should contrast some of your roof textures to make the view from above better, so it doesn't blend in. Maybe even create some depth add a border wall to a couple of the roofs.