Step 15: Draw Simba's top lip by first drawing a short vertical line below the nose. Then draw a long, wavy horizontal line underneath for the top part of the mouth. Make this line thick and pay attention to where it ends on either side. Connect the right tip of the mouth on the right to the nose using a short line.
Step 16: Now draw the lower lip as a line that starts on the left and curves to the right. Sketch lightly at first and only darken the line when you get the shape right. Add two triangle- like shapes above the lower lip for Simba's visible teeth.
Step 17: Add a short line on the right to connect the mouth. Draw a couple of curved lines inside for Simba's tongue.
Step 18: Add Simba's chin by first drawing a short curved line on the right side of the mouth. Continue drawing the line downward and follow the basic edge of the initial circle as you create the shape of the chin. Curve the line left and up along the edge of the initial circle as you create the big square-like lion's chin.
Step 19: Draw a short, curved line above the eye on the left for the first part of Simba's mane. Now draw a long, curved vertical line to the left of the eye that connects to the short line at the top. Add another long, vertical line on the left to form a shape similar to a long letter V. Draw a curved line above, almost touching the initial guide, for the part of the mane's bangs. Add a couple of short, diagonal lines on the right side as well.