Not bad, three items to consider:

  • The tree in the top right corner seems to be missing the layer effect of the snow.
  • The beveling on the snow is a bit to hard especially for the trees where the wind effect would shake the snow down and smooth it out more.
  • Your elevation layers aren't as connected to each other like I've seen in your previous maps.

That said, this really has a lot of potential and I'm looking forward to seeing it get massaged a bit.

For the snow, I think a feathered edge is a must and I would use a softer bevel followed by a blur or two to soften it a bit more and attach it to what it is laying on.