I think the mountains blend in a lot with the city skyline, and I'm not sure if I like that or not. I will contemplate on it and come back to vote later. I do like the color tones in this a lot. ETA: turns out I like it :)
Fascinating image, it seems completely surreal, and that's perhaps the issue. Honestly, I doubt the sky is from the same capture, the light on the mountains (or the foreground) doesn't match the sky, and something in the sky's sharpness vs the mountain's and town's sharpness is also different. I hope I'm wrong - I rate it high for the moment.
If I'm wrong, you postprocessing is impressive. You could still improve it dodging the mountains - the town would better stand out.
You have a very interesting sky to work with but instead most of the frame is filed with the much less interesting field of melting snow. Could have been better. Try getting closer to the buildings or aiming higher. You probalby lose the mountains in the background if you were closer though so aim higher.
The bright foreground keeps drawing my eyes away from the cityscape and mountains. Gotta love those prairie skys though. Great location to shoot from, I've been looking for a good one from the NE for a while now.