I love the 16x9 aspect ratio, works great for this skyline, but way too dark, leaves much to be desired. Try this again next month with a longer exposure and I'll bet you'll have a great shot on your hands.
I understand what you are going for here. However, it is not my style. Too much dark sky for my taste. Really takes away from the focal point. I think it would be more pleasing to the eye with color. I give it a 7 though.