A slightly different angle that would not have caused the sign to interfere with the flow of the road curve would have given a better effect; otherwise well done.
Graceful curves and the sweep of the mountain clearly hold this image together. What would help this nice picture would be a nice splash of bright color somewhere in the composition. A helpful car would work, or a person in a red coat near the bridge... you get the idea. Keep working, you have a good eye for composition.