In this tutorial, we learn how to draw realistic lips and teeth. First, draw on your outline for the lips and teeth, using a light pencil. Try your best to get it as natural looking as possible. Now, draw in the shadows and the mid-tones for the lips. Also add in reflective lights and draw in the teeth. Add in details to the teeth and use darker lines to separate them. Use dark creases to form the lips and then continue to add in additional details. When you're finished, darken around the mouth and then enjoy sharing this with others!