Hi, Carol...I think that the white vignetting increases the foggy look. Love the color of the bridge contrasting with the fog. Looks like some sort of fruit tree in the foreground which helps the feeling of depth. Pretty nifty shot of a lovely area. You don't find many private bridges around here.
Some people have Gurus, I have my camera. Through the cam lenses I have learnt to deeply perceive life, not only to see, but to look at all expressions of nature, becoming able to read the poetry of the flowers, receiving the embrace of the trees and flying above the clouds without wings! - Susie Sun