Good
A simple but efficient design, the part of the nose and eyes is fine, but the mouth has some inaccuracies (mainly in the area of the canines, and molars do not have the right size) I recommend you use a piece of charcoal and you give the shape of the tip of a pencil, is more efficient to detail ways in the skin and if you can take the measure of your face to a more realistic design proportions of your face would be great.