That's it for the initial sketch! From this point on, press harder with your pencil to get a more defined sketch.

Step 6: Draw the eye on the upper right side of the hippopotamus' head. The shape of the eye is similar to the shape of a football. Inside the eye draw a circle and shade it in for the hippopotamus' pupil. Draw a few lines surrounding the eye for extra detail. Draw two bulges above the eye as the protruded eye sockets.

Step 7: Draw the hippo's ears where the circle meets the neck line, to the left of the eyes. First draw an arc. Then draw some lines within it and at the base to represent the ear structure. Draw another small curved line to represent the other ear.

Step 8: Use the arc as a guide to draw the hippo's muzzle. Follow the arc and give it a slight bulge on top where the nose will be. Then draw the mouth as a line that curves in toward the hippo's eye. Darken the bottom portion to create the lower jaw and a slit near the top for the nose.

Step 9: Using the circle and lines as guides, draw the rest of the hippopotamus' head. Draw curved lines throughout the head to represent the folds of skin and a few at the base of the hippo's mouth for detail.