Very nice composition...the only thing to improve there is the slightly cut off skyscrapper on the left. Also, I would liked to have seen this picture darker with some more contrast to bring out the lights in the water and buildings. I think this would also improve color saturation as well. Good job on compostion!
Next year I need a buddy with a boat... I like the line of them heading wherever they're going, and the reflections in the water. The top half is pretty flat lightingcolorwise, and the whole seems to be listing to starboard. Nothing a little photoshop couldn't fix, if that's your thing.
This is a great shot. Meets the challenge nicely. The reflection on the water is beautiful. Looks so peaceful for a big city. Good luck in the challenge.