The Drawing Process of this painting:
it's not a how to for shading (I'll layer make skin shading tutorial or face tutorial),
but to help you to guide the revise colors and how screen/soft light/dodge layers are applied. (I use a lot of layers of soft light/overlay/screen/etc.)
It might help you if you wondering, 'it doesn't seem like it's done with normal brush setting, how can I get this color?"