Step 15: Use the second line from the right as a guide to draw the front leg. Follow the path of the guide and lightly sketch the shape of the mule's leg around it. Don't make the leg too thick. Keep the lines close to the guide. The top part should be wide. Draw an extra bump in the middle for the joint. The hoof at the bottom should be square-like. When you get the shape of the leg right, darken the lines. The hoof at the bottom should slope to the right a bit. Draw a line inside to complete the shape.

Step 16: Use the line on the right as a guide to draw the mule's other leg the same way. Lightly sketch the leg around the guide. Darken the lines when you get the shape right. Make the shape extra curvy in the middle for the joint. Keep the shape of the leg thin and draw the blocky hoof at the bottom.

Step 17: Use the angled line on the far left as a guide to draw the mule's first hind leg. Draw this leg the same way. Follow the path of the guide and lightly sketch the leg around it. This leg slopes to the left before angling down near the middle. The top part of this leg should be a lot wider than the top part of the front leg. When you get the shape of the leg right, darken the lines. Draw the mule's blocky hoof at the bottom and a round joint above it.

Step 18: Use the line to the right as a guide to draw the last leg the same way. Draw the shape of the mule's leg around the guide. Don't forget to add the curvy joints. The top part of this leg will be hidden behind the first hind leg.

Step 19: Use the remaining lines and shapes as guides to draw the rest of the mule's body. Simply darken the outer edges of the initial guides to create the shape of the body. As you darken the lines, don't overlap the legs that are on this side of the body.