I have a styrofoam mountain/tunnel. The first coat of paint I put on was an acrylic brown paint, applied with a 3" foam brush. Now, I'm a little confused as to what I should do next. I think I should use acrylic gray paint to highlight rocky outcroppings, and at the top of the mountain. Then, I think I should either use some acrylic forest green for a grassy effect on the lower and middle parts of the mountain. After that, should I use some kind of finishing spray, or a spray cement so that I can sprinkle a kind of lichen and then affix bushes, shrubs and trees? I'm new to this and I'd appreciate some kindly advice.
Thanks