Civ color?
Poser or Bryce? Looks poser, but thought I'd ask since some of the changes that would be cool are easier in Bryce. If it is Poser, is it boned yet?
At civ scale, the all white doesn't work all that well. It all washes together into a blob. Maybe take some very minor liberties with the color/shading.
The problem with extreme color textures, dark or white, is the same as in photography. You lose most of your detailing.
One thing that might be worth experimenting with is using either an extremely light shade civ color mixed with a very light shade of gray to replace the white. It would look very close, but it would have a hint of civ color and the detailing would remain. Also boosting the contrast by reducing the diffuse channel (in Bryce) or darkening the ambient color in Poser might help.
Naturally, the model looks just cool.