Some of your scenes would make for super bad ass still to 3d animations!
Per that other thread you posted.
I imagine that it could be one way to fix some of the issues you face, since you could photoshop the still to perfection via matt painting techniques and then do the 2D-3D treatment.
Kinda just curious if all that could be done faster than a HD animation sequence of say 30 sec to 1 min in TG on your desktop... Assuming that you perfected the terrain the way you wanted for the terragen render vs a imperfect terrain fixed in photoshop then animated.
Awesome images regardless. Just what I was thinking about seeing these images after looking at your mars thread in open.
*oops I meant inkydigit's thread http://www.planetside.co.uk/forums/index.php/topic,22982.0.html