I like this picture. Great contrast, the feet path make a diagonale which is good. The shadow of the fence is nice too. My only suggestion is that bright part of snow on the right which is a bit disturbing. You could try to darken it or a crop on the right might be nice too.
Very interesting perspective, I like how the chain linked fence sort of rises up from the bottom left corner - almost as if trying to imprison the bird which has long ago flown away