Development process of salts building

As part of my input to the team trailer for our made up game "Torn", I'm Modeling the Shipley college salts building, to be featured a t the beginning of the trailer. The environment isn't finished thus far, but I'm towards the end of the modeling stage, soon I will be using unwrap UVW in order to texture the model of salts building in Photoshop.

This is what I've done so far-  
The textures soon on the building now are only temporary until I unwrap the model and texture it in Photoshop.