STEP TWO: EYES
The eye is an element of many details. Here I will show you my technique for constructing realistic character eyes. First, we will construct the eye as an entity separate from the face. Then, we will place it in the socket where it belongs. New Layer-->Eyeballs Organize each eyeball in its separate respective sublayer. We will start with her right eye so make a sublayer called Right or Righteye or whatever.
Draw the bulk of the iris
Use the ellipse tool to make a good sized circle with no stroke and the color of your choice. Where exactly to place the iris you might wonder? First off, imagine a crosshair that is pointed in the center of the eye socket. We want her to look straight at us. Since her head is tilted stage left and slightly down, we will position the iris to the right and slightly above that imaginary crosshair. If you stare at yourself in the mirror, and it doesn't break, you can move your head around and see how your eyes shift relative to the eye sockets. Ok shifty eyes what next?
Pupil Same thing as the iris only smaller of course and black. Actually pupils arent exactly black. So for details sake i am gonna give it a slightly purpulish tint on the fill.

Outer Ring and Speckle
Look at your eye and notice the dark rings around them. And I don't mean those lazy bags underneath. I'm talking about the stroke around the iris. Here is an important element many people omit. Again with the ellipse tool. Turn off the fill and select a shade of blue that is darker than the iris. This time I want you to use a brush stroke. I used the 'scroll pen' at .25px. I like it since it gives a very crisp, round look.
The eye seems very loud now so we shall turn it down a few notches. Select the iris and outer ring and lower their transparency levels. I bring them down to around 70%. This will give it a nice effect.

	Now if you look at your pretty little eyes again, in between the pupil and outer ring you will notice that the iris has a grainy texture about it. Take out the .25px Fire Ash brush and give those beauties some texture. Cool? Cool.	Now she looks like she's had too many cups of coffee. Let's put the eye where it belongs, on the inside.
Create Clipping Path
We already have the path of the eye socket that we drew earlier, while making the face(The lines that the eyelashes are connected to...). We will use that path to clip the area of the eye that we want to be seen. Select the path of the eyesocket(found in the layer Facial Lines). CTRL_C to copy it. Now paste it on your layer with the eyeball. Put it on top of the iris, pupil,outer ring and grain. Now for some magic! Select all of the elements that will be involved. This includes the eyesocket path you just copied and pasted, the iris, the pupil,outer ring, and grainy texture. Once they are all simultaneously selected, choose OBJECT-->CLIPPING MASK-->MAKE.
We are almost finished, just a few finishing touches.

Reflective Glare

The eye has more definition with a subtle outer stroke. I used a very dark blue .25px stroke with the 'Tapered-Round Brush'.

Possibly the most important of the subtle details is the glare. This is the reflection of light off the lens of the eye. Every open eye has one!

Make sure nothing is selected. Open the gradient window. It should default to black and white linear. Choose radial from the drop down menu. Now draw the ellipse on the edge of the iris.

It probably won't look right at first. You will have to adjust the gradient so that their is not so much black around the edges. Pick up the gradient tool. Click on the center of the glare and drag outside of the ellipse untill you get the sphere mostly white with a touch of gray around the edges. You can lower the transparency to around 70% if you wish

Final Gradient

Last but not least, we will give the white part of the eye a gradient.

Draw an ellipse with a white fill and no stroke so that it is a little larger than the eye socket. You will have to use the transform tool to position it correctly.