I finally wrapped up creating the environments for the "Aries" games demo. I created all the alien architecture using Maya and Zbrush as well as using Photoshop for texturing. The human character was made by Evan Brown, human props were modeled by Travis Auerbeck and Sean VanGorder.
I also did the level design and layout as well as the lighting the environment and characters using Unreal Development Kit (UDK)
All images are realtime renders from the UDK.