Here's a quick render with far too much IDL (I thought I had an image on the dome in this scene-ah well...).  I imported it at 100 % and scaled up to 1000% No shadows from the foreground towers because it's hanging off the edge of the ground plane.

 

The only thing I might add is that it would be nice if there were a mask for the windows so a reflective shader could be applied to the glass areas.

 

Thanx for the nice model!

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