Georges Seurat used the pointillism approach and the use of color to make his painting, A Sunday Afternoon on the Island of La Grande Jatte, be as lifelike as possible. Seurat worked two years on this painting, preparing it woth at least twenty drawings and forty color sketched. In these preliminary drawings he analyzed, in detail every color relationship and every aspect of pictorial space. La Grande Jatte was like an experiment that involved perspective depth, the broad landscape planes of color and light, and the way shadows were used. ....