Here is a shot of a Space Environment concept. Entitled, Arek Breeding Facility, this is a concept of what the Boss's chambers of the Alien facility could look like. There are captured space marines in the test tubes who are being drained of their life essence to feed the Mother Breeder. The environment came in at just under 26k tris (excluding characters). Texturing is all painted, no normal maps or spec maps in the scene.