I forgot to take picture of the sketch but here I have my first sketch of this idea (my daughter made a scribble over it):
I started with hair (I just like to do "wild part" of painting first, don't know why exactly).
I wasn't going for realistic look - more I was trying to find my style for painting people. Anyway, it was a great exercise. Thank you for this class and for a tip on pinterest board with references, it's amazing.