Nice reflection, but lacking a bit of light and contrast in my opinion. Since you have nothing very strong in your composition, sun and shadows were needed. Or with that light, something like a strong perspective or leading line for the eye.
The reflections of the buildings is perfect. I wouldn't suggest cropping the picture to take out the structure to the bottom left as that would take away too much of the building above, but perhaps taking the picture at a slightly different angle would make it a cleaner shot?