Looks a little boring. The colors and everything look great, but I think you should add something happening with the buildings.
What exactly? Its supposed to be a "Noir" or "Relaxing" theme... It might look boring, but I really cant add anything, it wouldn't fit
I know what you mean. I was thinking maybe some pen tool or something small like that. Don't get me wrong, I do like it. It just looks like there could be more.