The photo search seems to have failed again to find your title, so I am left to rate a photo as is. Your subject is nice looking, eye color is right on clear and bright. Your DOF seems a bit uneven. I think setting the strength of the blur much lower around the eye and slowly increasing strength as you get closer to the camera would have helped a lot. All in all I like the picture and give it a 8.
Very nicely done emulation of the original! Love the blue of the eye which jumps out at you because that punch of color contrasts well of the pale skin tones of the model. I think you could safely go with adding a bit more saturation to the eye color to really make it pop out more. Not too much for you don't want to go overboard and overly oversaturate it. Also with just a little touch more of contrast that blue tone can have a nice richer, deeper hue. My only other suggestion on how to improve this composition is to be careful on how much light is illuminating the subject. The skin tones are not all even. The cheek area has blown highlights or looks a bit more overexposed than other parts of the face. Bouncing the light of another reflective source so that it doesn't hit the model full on would be one suggestion on how to correct the problem. Or you could diffuse the light source by placing a thin cloth a few feet away from the light source such that it scatters the harsh 'spotlight' and evens out the lighting to softer shades of illumination thereby getting rid of harsh light with blown highlights.
I found the image you are emulating but only because someone else had the title so I could search for it better. This may hurt your score with some voters. Anyway, back to upgrade my vote now I've found the original