I like it! I think the highlights were the sections where you had the glockenspiel? chimey things? going. It certainly sets the mood of snow. I even liked the epic taiko type drums, as though trees were falling down into snowy explosions, or as if someone were shooting a cannon at me whilst I trudged upward.
I think you might take another look at the piano sample, what are you using? It sounded kind of two dimensional (as most piano samples do!) but maybe swap it out, or better yet just add some lengthy reverb to it? It's kind of dry as it is, compared to the rest of the orchestra in the forest, in my opinion.
this is a cool piece, thanks for sharing it.
-Tom