D&Paint - figures

So my warm-up sketches have been the basic human figure in different poses; I lack in the whole figure drawings, I can draw faces, hands, and feet with some time, but I can't put it all together to look proportionally correct as a whole. I'm allowed to paint a final of just a face image so I'm going to draw/paint my friend's girl friend when she's wearing a finger mustache, it's a pretty funny picture. I'll admit that I'm kinda nervous about painting it; I'm only just getting comfortable with drawing people's faces and expressions so now painting it is a little nerve wracking. Hopefully it turns out just as good as my previous face drawings have.