Friday, January 13, 2017. To determine where values change when light moves over an uneven surface by using a range of values to paint the different values in a realistic, monochromatic self-portrait;. To use your knowledge of color to choose a color that matches the mood of your pose. To effectively communicate an image that looks like you through careful examination of the values and structure of your face. Monday, January 9, 2017. What colors are used? Is the ba.