This piece of art is really stunning.
I love how the iris seems to emit light, which illuminates the rest of the eye. Also, having the pupil be so big seems to lend an air of mystery to the picture, along with the lack of a reflection in the iris and pupil. I also love how the rest of the face is cast into shadows, which combined with the bright colors in the iris really brings in your attention to the focal point of the piece, which is the eye.
Also, you are really good at drawing eyelashes
From Ninjagofangurl (needed two words LOL)