I think it's great! The iris colors are very pretty and well drawn. I can offer a bit of advice though.
Okay, so first of all I think the iris should be more round. The top of the iris should touch the eye lid, and same thing with the bottom of it. Because you have the pupil facing toward the viewer, the iris should be centered in the eye. Also, watch the bottom outline, it should come up a bit more, right after the third eyelid remnant. (the red part) The white part of the eye isn't all white, try adding a bit of shading, and red/pink veins. Finally, the skin below the eye is very textured, it has small little bumps and grooves. You did a great job on the creases right above and below the eye! I hope that all makes sense.
I hope I wasn't too tough!! Eyes are very tricky to draw and get right. If you don't understand what I just said, try looking at this, It might help.
Close up of an eyeAgain, let me tell you that this is a very pretty picture, and it looks great!