Yeah, well, I did sleep 8 hours or so
With this kind of experimenting it's important to notice flaws, like overlapping ground, and spikes, but interesting results can be had. You can also line up some displacements and have it made into color by using a displacement to scalar and have a few of those lines and mix them, displace that, whatever.......
And use masking by PF or slope (after a compute terrain, or compute normal), then mix, etc.