Next step was the Lighting. I did a very simple arrangement of lights, only one area light at 65% (because I use Fprime as the render engine, with .5 of the Lighting quality Montecarlo radiosity, and 2 bounces).
Here is a render:
Once I have saved the scene, it's time to work on adding the textures. So lets dress our models :D
According to my references, I started to pick out the colours for the buildings and floor with getting a good balance of cold and warm colours. Next I pick some base textures; I've used textures from 3DTotal Total Textures DVD's V1. V2. V3, V6 V10. I tweaked and mixed them in Photoshop, using the masks, colour filters, dodge and burn tools. I like to mix all in one psd file and I use masks, brushes and mix them to get my desired result. I like to work with large textures, I use 2500 x 2500 textures, because of the RAM.