02. When you’re satisfied with the sketch, import it into Illustrator using File > Place and set the transparency to about 40 (highlight the sketch and then go Window > Transparency, or hit Shift + Cmd/Ctrl + F10). Now lock the layer (Object > Lock, or Cmd/Ctrl + 2).
03. Starting with the bottom jaw, make a basic outline of the head. It’s crucial that the shape isn’t too complicated, as this will make the mesh difficult to control. With the shape selected, fill the path with the mid-tone colour (C = 52, Y = 28, M = 67, K = 22). We will create the shadow and highlights using the mesh.
04. Select the Gradient Mesh tool and place a point near the bottom edge of the jaw line. We are trying to get the path to follow the curvature of the jaw. We will be developing the shadowed area along this line.