When it has been a while since you have done a portrait, you tend to skip and jump right in, especially if you are excited about the subject. Guilty. But, alas, there is a reason that it is taught to measure, drop diagonals, remeasure and check and recheck. One of my nemesis in portraits is that I tend not always to get all the angles of the eyes, nose and mouth going in the same plane. So after doing, erasing, repositioning line drawing, and erasing, well you get my drift, I think I have finally got the nose and mouth foreshortened and things back in sync. If anyone sees something else, please let me know - thankfully pastel is pretty forgiving at this point. The other important thing is to remember you can always reestablish the drawing - when you are blocking in color many times your guideline drawing gets colored over, you can either erase to your original lines or better to restablish with either very light pencil line or maybe a different color pastel that would blend eas