Thanks for all the comments. I enjoyed making those ships. I really would love to do some more in a similar art style in the future. As for some of the questions: There are no normal maps. I used 3ds Max, Photoshop and Zbrush+ZAppLink for painting.
Gotta love the Robotech mechs!! Favorite show as a kid. Even now. I downloaded all of the Robotech episodes. I've been keeping an eye on the progress of the Robotech movie coming out in 2010 (I think).