Get Some Color Happening On This American Revolution!
My apologies to George Washington and Leutze et al... So after the monochrome underpainting dries the next step in an indirect painting process, and the first move into color is with glazes, that is transparent color applied to the painting. Think of it like how people used to apply washes of color to black and white or sepia toned photos and they just almost look like a color photo... like that but on your painting... colorize it! At this stage on the painting it's ok to keep the drawing a mess and concern yourself primarily with large simple areas of color that express the lights and darks of the design.