After the rocks were placed and carved in the White plaster was painted with multiple layers of paint in various colors. A base color was added first to cover the all the white, then I used diluted acrylic paint in water. Applied with a water sprayer. This allowed the paint to be added in drips and dribbles. This is how I added the darker shades. At the very end I used diluted India ink in the same water sprayer to add the runs as you would see in real rock formations. Then of course the trees were added in a way to try and replicate a real forest, definitely easier said than done. The trees were placed by drilling holes in the plaster and then filing the hole with hot glue from a hot glue gun and the tree placed and held in placed while the glue briefly set.