Because of a closing deadline I only had about four to five hours for each image.
In this blog I'll explain how I've created the image for the main menu. Because of the limited time I decided to only use the low poly 3D in-game assets.
I made a copy of Eugene's city game environment, added a camera and played around with it until I was happy with the camera view.
I decided to render the image's lighting in separate files, so I could easily adjust the lighting and shadows in Photoshop. This can save of a lot render settings tweaking time while making the Photoshop file much more flexible.
First I rendered a diffuse map set to full emissive, resulting in an image without shadows. Looks ugly doesn't it?