someone asked for it, so here it is a step by step of the pic with Eric Munjo.
sorry it s italian , but it s not difficult to understand:
(using paint tool SAI)
2- more definite sketch
4- base color
5- light and shadow (that s how it appears if the layer is set on “normal”)
6- final (and that s how lights and shadows appear when the layer is set on “overlay”).
hope it ll be useful!
it will be surely for me! cause i often forget how to set the layers XD