I had to look up shaded relief. I think what you are saying is that the trees and city brushes that Ramah made cast shadows at an angle to account for the sun, but Pasis's technique of using textures and effects to create landscapes clashes with that. If am an interpreting that right then I need to add light and shadow the the landscape to get these two styles to mix better. Not sure if there is a fancy photoshop effect that can help with that or if it would all need to be done manually.