Looks good, but 1 I'd like to see a figure there so I could tell how big it is (or a ruler).
and 2 the trees coming up out of concrete are odd. Either lose them, or put a turf box around the base like you'd see in a mall or a parking lot.
This pic looks computer drawn to me or drawn over a photograph. I think it's cause nearly everything looks like a smooth polygon. And the light source doesn't hit everything like it should be. Is the contrast too high? I can't make out any textures (except for a few poles). But from what I can tell, it looks impressive, structure-whise.