Step 15: Use the remaining shapes as guides to draw the rest of the warthog's head. Use a series of curved lines around the eyes to emphasize the folds of skin. Below each eye, draw an arc-like shape that points outward for the fleshy protrusions found there. The lower protrusions are hidden in this angle. Draw a sloping line on the left for the side of the face. Draw a series of short strokes along the lower, right side for the bristles found there.
Step 16: Use the second line from the left as a guide to draw the first front leg. Follow the guide and lightly sketch the shape of the warthog's leg around it. When you get the shape of the leg right, darken the lines. The shape should be wide at the top, and then thinner from the middle downward. At the bottom, draw two triangle- like shapes that point to the left for the warthog's hooves.
Step 17: Use the line on the far left side as a guide to draw the second front leg the same way. Draw the shape of the leg around the guide line. Add the warthog's pointy hooves at the bottom. Make the shape wide at the top and thin at the bottom.
Step 18: Use the line on the far right side as a guide to draw the first hind leg. Follow the path of the guide and draw the shape of the leg around it. When you get the shape of the leg right, darken the lines. The top of this leg should be a bit wider than the tops of the front legs. Add the warthog's pointy toes at the bottom and curve the middle section to create the joint.
Step 19: Use the last line under the body as a guide to draw the other hind leg the same way. The top part of this leg is hidden behind the warthog's body, so only draw the lower section.