The Foundation layer is the basic layer of color after the base coat. We put it on the boards that we are putting the mural on. We also put a foundation layer on the flowers that we are putting onto the mural. We all had our fair share of painted the pieces of the mural. We had to paint many layers so that the green base coat wouldn't show through, like there had to be many layers of yellow put on. After we finished doing all of the foundation layer work we had to start painting details.