Concept art for my Environment and Level Design class. We made a very simple mock up of the structure in Maya and then rendered out an ambient occlusion render and painted color and detail over that. I really liked this technique and will likely use it in the future.

Level Backstory:
The setting is an extra-solar space colony constructed and operated by robotic intelligence. The city was autonomously constructed by tiny swarm robots while a colony ship traversed interstellar space to the planet. The city was therefor constructed for human living by robots with no concept of emotion, comfort or any form of human culture. The resulting city is a cold, efficient machine run by an advanced robotic artificial intelligence.