Boat Yard Study No.1 Oil on card stock. Today I was experimenting with how a color ground affects a painting. Study No.1 was painted without a ground color. Study No.2 has an orange ground. I like the orange ground as it sets up more of an emotional response. By doing these sketches/exercises I can see for myself how the colors of the ground affect the colors put on top. I hope by doing these experiments it will help my painting vocabulary.