This is a very nice shot! Please post the Exif data as requested in the critique forum quidelines. I think you might have added some white vignetting to enhance the fog? If so, I'd like to see the shot without it.
Thanks Rick will include exif in future posts, The original shot I felt was too tight on the tree so I increased the canvas size by about 10% and used content aware fill to take the image to the edge. Having done that, this image is still pretty true to what I was seeing at the time. Zooming out would have achieved the same thing I know but its a bit late now....
I think this is an image that should be cropped to appear to be a pano. IMHO it is too centered and the white above the trees doesn't add value to the focal point of the image.