Thank you for the nice comment - c'est moi, l'artiste
Where exactly do you see noise in the foreground? The snow in the bright part of the forground - center to right - is (at least in the original image) rather sparkly and finely structured, but not noisy as far as I can see. The snow that day was fresh and quite rough-grained.
Or perhaps what I see as a fine structure is actually noise? In which case, how would you deal with it?