Fluffy Moss Shader v1
Working on another version but my ideas have hit some road blocks. Simple surface shader with complex internal node network. I spend a lot of time on small details and mixing, sometimes it pays off, other times it doesn't.
In this case I find the moss looks pretty good. Even close. And that's at a MPD 0.6 and AA 6 limitation, though I did bump GI cache and detail to 4, and Occlusion Weight (I believe it was) to 2 (feel it helps with fine detail being sharp)