Was the noise in the clouds intentional?
It looks like you beat the clouds up a little in post, which makes them seem a little off to me.
Could just be my opinion, but the trees look too sharp- I like the sharpness of the city- but I guess you did an overall image sharpen, when you should have used a local adjustmet to get just the city sharp.
It sounds small, but that little green "flare" type thing coming off the left side of the tallest tree is distracting, I keep look at that, and I know that is not the point of this picture.
Of course I would like to see less trees and more city, but I dont know if that is an option.
Lets see what some others say.