Delineate Your Lips - How to draw a realistic eyes in Photoshop by Kajenna - How to draw lips correctly? The first thing to keep in mind is the shape of your lips: if they are thin or thick and if you have the M (or heart) pronounced or barely suggested.
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.