I was asked to do a tutorial on the eyes from one of my manga contest entries. It's super fast, super easy, and super cheesy. I want beginners to be able to understand the steps fully. I hope you'll all enjoy!
Start out by drawing a curve. This is the upper eyelash-line.
Then add the lower curve. This one is smaller than the upper.
Add eyelashes separately. You decide how many and how thick/long they should be.
A few more lashes, also on the bottom line.
Then add the eyelid line(s).
Remember the eyebrows! Many beginners tend to forget them, even though the brows are an important part of the expression.
Add the highlight(s). The bigger and the more, the girlier the character will look.
Now draw the iris. Big irises look more intense than small ones.
The circle in the middle is the pupil, and I surrounded it by some more shades, but you can choose just to make a full circle instead.
Then a few lines to give the eye depth.
Starting at the middle and going down, I made a gradient shading - by pressing hard in the beginning and then easening the pressure downward.
Again, now just smaller and darker than the first one - to give more depth.
Then I added a few sharp lines to give the iris some structure.
If you want, you can use an eraser to make some more light effects/highlights.
To get ultra-high resolution photo resources for Comics character we recommend visiting photo-reference-for-comic-artists site.