Just found out about this one.
I really like the direction you took it but if I may put forth a few ideas and suggestions... Maybe easy up on the vignetting effects (suggest it rather than straight out show it) and play a bit around with the sun direction to create a more dramatic scene (although the current one I really do like). I would also consider playing around with the reflections a little bit, to create a bigger impact on those windows (might work, might not).
Thumbs up, Sir!