I need to redraw everything with paint and get rid of the charcoal...this is critical. I don't want to mix the dry charcoal in with the paint.
Using just ultramarine blue and terra rosa, I wiped away the charcoal with a dry rag as I painted in the lines and values. With these two colors, I was able to rough in some color similar to the colors that will be in the final painting. The keyboard is starting to look more like a keyboard.