Looks like you had very nice colors that evening. I have to side with those that the bottom 2/3 dosn't really make the shot sing. The top 1/3 is an awesome sillouette with wonderful warmth and symetry. Crop it just below where the light begins again, and you would see an awesome pano. If I had the oppertunity to revisit, maybe think of a longer lens with a tripod and take a pano (few shots stiched together) with just that part...or maybe find a foreground that provides a little stronger interest and direction leading the viewers eye up to the amazing colors.

The B&W give more evenness to the entire picture...but then the focus goes away from what drew you to the scene....the color....as the symetry of the sillouette is secondary...and the B&W make that the primary interest...but I think the actually beauty of the warmth your top 1/3 shows was the origonal thing that caught your eye....and sticking with that ...and its color would be my suggestion.

Nice shot none the less!!!...and look forward to more.

Hope my suggestions arent too rough....im pretty tough on my own stuff too....lol.