This'll be a thread to watch for me, because A: I really like your colours and B: I like what you did to the bases.
I love the muted tones. I was planning the same thing.
I was unsure how to go about the bases. I went for all snow myself. I did not like it. Whilst I do not like the raised flagstone thing, because I would've liked everything to be leveled, it actually doesn't really detract from the overall feel of the models, and it looks tons better than what I did.
So I might just go ahead and do the same. Maybe have some snow build up on the edges for some of the models.