The world is not simply a selection of flat colors. There are places of light and darkness, a plethora of speckles and spots, and areas of unexplainable lack of color. Don't try to make the assertion that these imperfections don't exist in your art. Correct this in your charcoal and pastel work with blending stumps from Alvin. By blending your lines and colors, you effectively transform harsh lines into the soft glow of the background of nature.