Draw a light oval or almond shape for the eye outline
Add the upper eyelid curve
Add the lower eyelid curve
Draw the iris inside the eye
Draw the pupil in the center of the iris
Add a small highlight in the pupil or iris
Sketch the upper eyelashes
Sketch the lower eyelashes
Add the crease above the upper eyelid
Shade the iris lightly
Darken the pupil
Shade the upper part of the iris slightly more
Add shadows under the eyelids
Refine the outline and erase extra sketch lines