Step 6: That’s it for the initial sketch! You have learned how to draw the basic King Boo shape. 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 7: Now learn how to draw King Boo's eyes. On top of the small ovals inside the head, draw two big U-shaped arcs for King Boo's eyebrows. The point that the arcs form in the middle should be right on top of the vertical construction line. Shade in the small ovals except for a tiny spot at the top to represent glare.

Step 8: Now learn how to draw King Boo's tongue and mouth. Draw the tongue at the bottom of the mouth shape by using a series of curved lines. The bottom part of the tongue should stick outside of the main circle.

Step 9: Use the U-shaped arc as a guide to draw the rest of King Boo's mouth. Darken the sides and the top of the mouth and make the lines curvier. In the top, inside part of the mouth, draw four triangle-like shapes for King Boo's teeth. The points of the teeth should be rounder, and the teeth on the sides should be a bit bigger than the ones in the middle.

Step 10: On either side of the head, draw two small arcs for King Boo's arms. The arms should be placed at the ends of the horizontal construction line.