those buildings themselves look great. but i would change the sky texture. the present one dont fit to the lighting conditions at all. and also street should be brighter. with much more indirect lighting and bleeding going on. also lighting can do some magic - a dominant key light with crisp shadows with some fill lights would bring a life to this scene
but its a great start , looking forward for updates
Looks amazing. As the poster above said, the buildings look very flat, on the second screenshot it even quite looks like the buildings are just planes (I suppose stretching them a bit would do the trick, or manipulating with shadows/normals). And the tree planes (leaves) need to be worked on, that was pretty much the first thing that popped to my eyes. And yeah, you should use dominant directional lighting as said. Also, since by the sky it looks like you wanted a darker atmosphere, you should turn down the dominant directional light brightness a little bit.