If you want to draw a good eye, you must understand the basic composition of the eye, such as the inner corner of the eye, the outer corner of the eye, the upper eyelid, the lower eyelid, the brow bone, the brow bone and the brow tip. Note that the eyes are spherical, which is why the upper eyelid has highlights and the lower eyelid is uneven, because your eyeball is spherical. Eyes are also related to age. For example, a teenager with a strong sense of youth and lively sunshine will have round eyes. Round is more lovely, so the eyes are round when drawing children. Of course, sometimes some things are relative, and it is enough to compare them in the same painting style. The eyes are the windows of the soul, and the eyes are the key points in the design of cartoon illustrations, which is the difference between your role and other roles.