Very nice image... As I was scrolling, I noticed that I liked the image even better with the brighter portion of the sky cropped out.
I hope you don't mind my playing with your image. I also increased the structure of the image right side of the bridge; leaving the image left side to be modified by the mist.
Finally, for some strange reason, I thought that darkening the tops of the tree (lower on the image) reflections to accentuate the fish boils (?) would be an idea. I thought that this would carry the impression of the mist obscuring the reflections in the distance...