Step 20: Draw a small arc to the right of the small circle at the bottom for a folded-back finger. Darken the circle but make it more angular for Donald Duck's hand. Add an extra arc on the left for another finger.
Step 21: Darken the remaining guide for the torso to create Donald Duck's shirt. Add a curved line at the bottom for a crease. Draw a couple of lines from the shoulder to the bow to complete the shirt's collar.
Step 22: Use the sloping line on the right as a guide to draw Donald Duck's other arm. Draw the shape of the arm around the guide line. Make the top part extra skinny for the wrist. At the top, draw a curved line for the loose sleeve around the wrist. The bottom of Donald Duck's shirt should be wide. At the top, draw a couple of curved lines for the stripe on the sleeve.
Step 23: Use the circle at the top as a guide to draw Donald Duck's waving hand. On the left side of the circle, draw a short arc that curves to the left for the thumb. At the top, draw a longer, thinner arc that slopes to the right for the first finger. Donald's finger should be wide at the bottom and thin at the top. Add a slightly longer finger on the right. Add a smaller, final finger on the right. Darken the side of the circle for the hand and add a small, curved line inside.
Step 24: Draw a couple of lines around the vertical guide on the left to create Donald Duck's first leg. Draw a couple of curved lines at the top for the feathery part of the body that connects to the leg. Darken the shape at the bottom to create the flat foot. Make the left edge wavier than the initial guide to create the toes.