I started by laying on really wet paint, and then used a paper towel to smudge and remove the excess paint.
Then I added a few more colors, and used some dissolve and drip techniques to create a stone-like appearance.
Finally, I added the mod shapes and linked them together with raised white paint. I finished by painting the edges a dark brown and applying a protective varnish.
You can see more original artwork in my etsy shop.