Michael, I think I see where you're going with this shot- I see the "vs" theme, especially in the context of the brooding clouds: an imminent showdown! Well done.
I have a couple of suggestions:
1) I think the bridge line at the far left takes away from the shot.
2) There is quite a bit of water (I realize that your height on the bridge was fixed). Could you possibly stretch the shot, from top to bottom (15-20%) and then recrop, eliminating some of the water, to make the cities more prominent and possibly more ominous? Also, how about increasing the contrast of the water, with perhaps some dodging/burning to add more drama?