With so many different, gorgeous shapes and sizes of eyes, there's a lot to play with when it comes to applying eye shadow. Applying makeup to eyes isn't a one-size-fits all sort of transaction -- it's about enhancing and accentuating what you got.
Vector art digital illustration/tutorial of drawing an eye // Always great to see how something is done in illustrator. The eye is extremely detailed and has a lot of texture. Overall a great eye and very realistic.