In this case I'm not too convince it is the best you can do. Two reasons why: 1) the reflection in her eyes disolve the natural beauty I've seen in other shots. 2) Alto the right eye is a little bit blur. For me in this kind of close ups, it is a must to have the model's eyes well sharpen, as it is naturally the first thing any viewer will look first.
Yeah, she's a knockout. I think this photo is particularly strong, but the high contrast blew out your highlights. I think it would have been better to boost contrast in an inverse fashion: leave highlights properly exposed and then use curves to deepen the shadows.