So the intention of this it's to see if i'm actually starting right cause i really don't have a clue.
I will apreciate all your comments about the color and the drawing of course, thanks for your comments....!
this is the overall drawing:
Note: i'm actually using a layer of the sketch at the top (multiply) to get a better guide of he shadows and to know where i place the color
And this is the starting part (the head at 100%)