I read the whole thread, and you're impressing a lot of people there even with your Bryce and Wings toolset! :) I agree with many of them on the scale -- the windows really add to the illusion of size, and your models are outstanding. My one crit on the scale is that the structure on the right (where your robot will be) looks a bit huge compared to the other buildings, meaning that your robot may end up being physically larger than any large set of windows you have there. Is there enough distance between the foreground structure and the others to account for the size? If so, why isn't there another bunch of buildings or two between them? What I normally do in a situation like this is check the #3 view in Bryce and just compare the size of one wireframe to the others. Size and distances might not be obviously apparent in a render, but it does subtly affect the final image, especially in the lines of perspective and most especially if you have any atmosphere (which I know you won't have because it's in space, but still...). Anyway, it just seemed a little off for me because I recently did a Bryce image where a person looks larger than a castle tower because the tower was in the very far-off distance. With distance you lose detail, color saturation, and focus, and I just didn't get the same sense here with your last test render. Sorry for the critique, by the way, but I thought I'd point it out before you do any more work -- although the line of ship/craft traffic that you're planning will probably bring the issue up without my having mentioned it anyway. I would have posted this comment in the CGTalk thread, but I didn't want to impact it and your contest rating with what might seem like a negative comment. All in all, I love what you've done so far. :)