This is a copy of the angel's head from the painting Madonna on the Rocks (1483-1485 ) by Leonardo Da Vinci. This painting is in the National Gallery in London. The original is in oil; my copy is in graphite. I changed the angel's hair a little to make the woman look more contemporary. I have been using the egg shape as a basis for drawing heads. I draw guidelines on the eggs to help me position the features of the face. This method is not particularly accurate though; it is easy to get the guidelines wrong. I plan to try out other methods, such as the cube in perspective, to see if they lead to quicker accuracy.