OK, so in this step, basically all you need to do is lightly sketch the shape of the eye. There’s not much to it, but you do want to spend some time just to make sure this part is exactly how you want it, or the completed drawing will not look good.
Here you just want to draw in the iris and pupil, sketch in where you want the highlights to be, and lightly shade in a base tone for the iris.
In the third step, you should shade under the eye lid a little bit and shade in the pupil. Also, you should draw some lines coming out of the pupil going towards the edge of the iris like you see in the picture.
Here you want to add shading to the outer edge of the iris with lines that go toward the pupil. There should still be part of the iris that is the base tone, which you should accent by adding a shadow underneath to give it depth. That sounds confusing so just look at the picture. I added some shading under the bottom eye lid here, but a also made sure I left a small outline of white around the eye where the eye lashes will go.
This might look like a big difference, but just add eye lashes by drawing thick lines that taper to a point. They should dip down before going up to give it more realism. The bottom eyelashes should be smaller and clumped together a little bit. I also shaded the white part of the eye a little. I added detail to the iris by adding small black dots and lines and giving it small highlights.
This is just adding final touches. Darken all the darks to really dark to give the picture contrast. Make sure your highlights are really highlighted. You can make a reflection of the eyelashes in the highlight in the iris if you want. You can either make the white part of the eye look glossy with highlights and shadows or you can put blood vessels in it, or both. Just keep adding detail and shading around the eye until your’e happy with it, and then your’e done! Wooooohoooo have fun!