Ears are not very difficult to draw. Use white plaster casts to become familiar with where you might expect to see lights and darks on a real face.
1. Draw Half a Heart
From the front of the face, the outside of the ear looks a bit like half a heart.
2. Draw Another One
Starting below the original line, create the bottom of the helix. The helix folds itself into the lobe toward the bottom quarter of the ear.
3. Draw the Triangularis Fossa
Draw a shape roughly like a triangle, turned upside down and slightly ...