Not too bad, I'd say. There's some blades penetrating the stones, I probably have to increase the decay percentage a little bit. I probably also have to make the blades less pointy, that doesn't seem very inviting to lay down. :-) And I'll probably have to ease up on the polygons, each blade now has 120 polygons, that's probably too much for a big area.

Well, refinements only over the weekend, I'm afraid that's all I have time for now.

If anyone's interested in this as it is, you can PM me your email address and I'll email the blade objects and the ecosystem.