Step 6: Draw a triangle-like shape under Sulley's eyes as a guide for the nose. The top corner of this guide should touch the horizontal construction line, and the left corner should touch the edge of the original circle.
Step 7: Under the original circle, within the shape of the arc, draw a shape similar to a sideways letter D as a guide for Sulley's mouth. The top right side of the shape should graze the edge of the original circle.
Step 8: On top of the head, draw two curved lines as guides for Sulley's horns. The line on the left side should be smaller because of perspective.
Step 9: That’s it for the initial sketch! You have the basic shape of Sulley from Monsters, Inc. Now go in and tighten your drawing. From this point on, press harder with your pencil in order to get darker lines and a more defined sketch.
Step 10: Darken the half-circle shapes to create Sulley's eyes. Inside each eye, draw a small circle for the irises. Inside each iris, add a big dot for the pupils. On the side of each iris, draw a tiny circle to represent glare.