I like the first one best. I might put soem traffic in the foreground in the lower right hand corner. Maybe soem terrain in the distance surrounding the city. Great as is I really like it a lot and my attempts at cities are usually very weak. I am only good for a villiage or a small colony.

The wit of a misplaced ex-patriot.
I cheated on my metaphysics exam by looking into the soul of the person next to me.