Great work! Your proportions here are good, so is your painting style. The background is simple, but in a way that enhances the overall image which is great. The face could afford to have a bit more defined detail, it feels almost like you hesitate to draw any strong shapes or lines on the face in case you make a mistake, but what you have there is great! It just needs to be a bit 'louder'. :) Great work, keep it up!