How to draw realistic eyes in generall, and how to draw different types of eyes.
Drawing realistic-looking eyes is a matter of knowing...
1)...the correct basic shapes and proportions of the eyes
2)...how perspective in general works
Note: This tutorial will teach you only the first step.
When drawing eyes, its cruxial to be PRECISE. We look at eyes everyday, we know exactly how eyes look and notice instantly if there's something wrong with a drawing of an eye. So be extra careful with them, especially at the beginning.
While practicing, always draw BOTH eyes, not only one (in this tutorial i don't do it always because of limited space. But you should definetely do it, if you want to improve faster ;) )
These are the basic, neutral proportions and shapes of the eyes.
The are FUNDAMENTALY!
Learn and understand the exact curves without flaw >:| .
Don't hesitate to look in the mirror or at photos. Compare your drawings with them. No matter how different eyes can be, they all have a similar basic anatomy.
Study, until you are able to draw the basic eyes without looking at references.
If you are able to do that easily, you will have no trouble drawing ANY kind of eyes in no time.
Tilting the eyes affects a characters personality enormously.
Eyes tilted outwards can have a weary, old, bored, dull and/or "unspecial" character.
Eyes tilted inwards can look sharp, focused, intelligent, sexy and/or wild.
The eyebrows are an other element, that influences the personality.
Like with the eyes, the can be tilted in- or outwards and intensify or alter the character of the eyes themselves.
for example, if you tilt the eyebrows outwards and the eyes inwards, the person will get an unconfident, doubtful and/ or unimpressed look.
you can experiment with that to your hearts content :) .
Besides the tilt, also the boldness, can be varied.
Thin, slender eyebrows look youthful, delicate and feminine.
Thick ones add to masculinity, confidence, maturity, etc.
You can also decide whether to make the shape of the eyebrow round or angular. For example, this can make a persons eyes look stern or easy-going.
There are many other variations possible with eyebrows. Don't hesitate to experiment if you are trying to create an original character.
The eyelids are the third part of the eyes that forges personality.
Hiding the eyes in the eyesocket gives them a hostile, dark and evil touch.
Strongly accentuated, limp eyelids can tell of an elderly, hardworking, "drained" person.
Drawing no wrinkles between the eyelids can create a feeling of concentration, as well as arrogance.
Very high upper eyelids give off a sleepy, unconcerned feeling.
There are many variations possible with that, as well. Experiment, experiment.
Finally, you should practice how to draw the eyes from different views.
It can help to start with a sphere, and draw the eyelids, eyebrows, etc. around it.
Also it is helpful to know the anatomy of the skull for that.
Like always, practice will lead you to success. And don't forget to enjoy the process :) .