The eye is the first element of the face to be studied because, in it, we can find a proportionality to the head. Besides, when we look at a portrait, that is usually the part that more catches our attention. An eye made with care enhances the whole work of a face.
Front
Step 1 – Draw a horizontal line and divide it into three equal parts.
Step 2- Then, draw a circle and enclose the eye contour. Draw the eyelid and the eyebrow above.
Step 3- Begin the details of the eye with the iris, working the eyelids and finishing with the eyelashes and the eyebrow, thread by thread.
3/4
Step 1- Draw a horizontal line and divide it into three equal parts. Then just remove one of the three equal parts.
Step 2- Then, draw an oval and enclose the eye contour. Draw both the eyelid and eyebrow.
Step 3- Finish the drawing of the eye with the shading, beginning with the iris.
Profile
Step 1- Draw a horizontal line and divide it into four equal parts. Then just remove two of those equal parts.
Step 2- Then draw an ellipse and enclose the eye contour with a triangular form. Draw both eyelid and eyebrow.
Step 3- To finish the drawing of the eye, please follow step 3 above (3/4 category).
Contrary to common belief, the eye is not a straight plane. Note there is a slight curve in the iris.
Study, also, the direction of the light to do the shading. It is important to note that, to the effects of shading, the feminine eye is different than the masculine. The first one is softer, although the eyelashes are longer.
The best way to study the movement of the eye is by making some drawings on a sphere. Get some practice.