I love this one, although it's pretty hard to map snow, you'll get better, that I don't doubt it.
This one ROX!:thumbup:
Maybe you could try taking the image in 25% lighning.
In this one you are using autoborder. :/ Don't be HUEVÓN, seek the items into the RAW palette, if you do that you'll see the MAJOR improvement you are going to get, Bardock did that and see his mapping and the reputation he have won... Take my advice.
The mapping looks cool, but like Bardock said, the dirt over there looks horrible...
This one is autobordered as well, but it looks cool, you could try more grass tufts over there, but look for them into the RAW. ONE BY ONE.^_^
I LOVE the "effect" that you did with the wall plants and the rocks, it looks amazing, like if the grass is going up through the stone, I love that.
You could try, as Bardock says, placing more grass tufts, and maybe for a "show-off vibe" you could place some ID:108, (that's another grass, you know it and you'll like it).
And for the trees, try AGAIN looking for them into the RAW palette, it looks ugly when the editor randomizes it, and if you did look for them, then try removing some and adding some others that may look better...
That's my advice.

Keep it up, you are getting gooooooooood...:thumbup: