I enjoyed seeing your drawing. You're definitely above me in your ability to make an eye look convincing. I like how there's a wide range of values and the darks next to the lights. And how there's a lot of contrast where the iris is and lines pointing in toward the pupil. It really directs my attention toward the part of an eye I care about most. And I found the texture in the eyebrow interesting. The eyelashes are just meh to me but they look realistic. Real eyelashes are not always amazing. So that isn't necessarily a flaw!

Good job, already feel more dimensional :)