Looks fantastic.
That square noise is pretty impressive.
Looking at the node network for that, my eyes just glaze over.
I don't know how you ever figured that out, but it's seriously useful to the entire TG community.
Is it possible for the TG architects to adapt that node build into a functional shader, so us non-math types would have easier access to its utility? That would be seriously boss.
What adds to a lot of the visual clutter is the way Terragen names things. I realize the end user has the power to change all that, but the entire 1_1_1_1 thing becomes quite akin to an episode of Hoarders when you're deep in the rabbit hole...there's shit all lover the place.