Draw some outlines See where the darkest parts are, and darken them. .This is roughly how I draw irises: Again, shade the darkest parts first! Then, shade the rest of the eye. Try and create some depth. .Blend the whole iris with either a tortillion, or a wadding stick (those things you can use to clean your ears) Repeat this process a few times. .Grab your kneadable eraser and try to create a sharp point to make the iris look less "empty".