Step one, like always you will start it off by drawing guidelines to help you sketch Scooby Doo's head a whole lot better. Start by drawing a round circle for the inner part of the head. Then draw a big rounded diamond shape for Scooby's nose, from the point of the nose on the bottom draw a line that goes right into the round circle that you drew for the face. Next draw cross lines to draw proportioned eyes, after that draw the oblong circular eyes, two of them.