Thanks to Kevin Fishburne for these rocky tiles! I think they look pretty great!
The only real issue with these tiles is the lack of an “interior corner” tile to handle convex corners in the terrain, illustrated below:
It would also be great to have some interior (non surface) tiles to make the inside of rock formations a bit more dynamic, but fading into black is doable as well, and I should really quit looking this gift horse in the mouth.
Many thanks, Kevin!