An Eye

Hmm, I'm not one to roast , but I will tell you what I see. Iris and pupil are not centered. Your eye lashes are right thickness but too uniform . Stager the lengths a bit. Last thing, the iris, its nice but also looks uniform , you also should add more detail to it. also the whites need a little not much mind you veins.

keep in mind, my suggestions are for extreme close ups. Your eye would be just fine far away, or smaller.