Wonderful sky and I really like the bridge. However, the vignetting on the right is very distracting. You could crop to the left of the "arch" in the lower left to remove it (and maybe take a bit off the top to reduct the excess sky).
I like this shot, but I'm not sure how I feel about the vingette, if it was because of your lens it's a bummer cause there is not a whole lot you can do in basic... meh whatevs! I like it!