Scenery: Clay Erosion / Part Two

Here is the clay erosion site (Abo Canyon) with soil added that was collected from the actual location.
I matched the color of the red clay dirt, Burnt Umber, Red Oxide, Titanium White and Yellow Ocre. Once I put a think
wash of Mars Black acrylic over the painted rockwork, the coloring seems to match perfectly. I have a lot of fun trying to
guess the colors I would need to replicate a real stone or soil and actually finding them and recording the ratio of the formulas so that I can make this again if needed and not have to figure it out again.