There are several eyes in this challenge, but this may be the best. The blue color is nice, but I wish you had left some color around the edge of the eyelid to add some contrast. 8
I love images like this, very nice composition, beautiful blue eye, only thing that would make me like this better would be to brighten up a bit to make it a bit more simplistic, if that makes sense, take out some of the detail in the skin around the eye.
Not bad but next time when you take an eye shot, try doing it outside on a sunny day, that will cause the iris to close down more and that way you get more colour and less black pupil. For the shot itself, neither bad nor good IMO, gave it a 5.
There are some very wonderful blue colors mixed with a little gold/hazel, but for me the use of the flash was not a good idea. It takes away the interesting textures and shadow formed by natural light. This eyeball also takes up far too much of the image percentage wise. It almost creeps me out, looking at. <5>