Step 11: About halfway between Shrek's nose and the bottom part of the original egg shape, draw his ogre mouth. His mouth is simply a long curved line with a smaller curved line underneath for his lower lip.
Step 12: Again, Shrek is an ogre, so draw a few lines for wrinkles and extra detail all over his face so he won’t look so smooth.
Step 13: Use the initial shapes as guides to draw Shrek's ears. Just draw around the outer part of the circles and thicken up the lines to make the base.
Step 14: Use the initial egg shape as a guide to draw the rest of Shrek's head. The top part of his head is smooth, but make the lower part a big more angular to emphasize his cheekbones, jaw line and chin.
Step 15: That’s it! You now have a nice sketch of Shrek. You can stop at this quick drawing for a rough, sketchy look or go for a more finished look by continuing to the step below.