I would have been inclined to crop a bit of the bottom of this photo out (the dark landmass). It may just be my monitor compared to yours but it appears very dark in general to me and if I am seeing it as you do then I would be inclined to lighten the shot a tad too to bring out a bit more detail. Nice cityscape nonetheless.
What is the black shapeless thing that is taking up a large part of the left side of the image? I assume that is water in the foreground, but it looks like a whole lotta blacknes to me. The sky, the water, the thing - too much nothingness. what i can see are the buidings, and tthey are very far away and quite centered. Overall lacking in appeal and composition.