The next step was to elaborate the finest details in Photoshop. Using different render pass and high definition images I have retouched the buildings, the ground and the bridge.
To better define the final image I have applied the image on a plane in Maya and reprocessed it. Illuminating it with some point lights in the desired key points for obtaining a new render.
I hope that this tutorial can be helpful for you and you could apply these techniques at your work.
