Camera Work/Technical: You have a great portrait here with excellent focus and a great depth of field.
Lighting: Near flawless lighting with great catchlights. You did a tremendous job controlling both shadows and highlights.
Composition/Content: A very nicely composed portrait, but I don't think that your circles were enough a part of the composition to really meet the spirit of the challenge.
My Opinion: I think that with more emphasis on the circles, this would have scored well into the 6.xxx range. As it is, I think that the voters were fairly generous. Very nice portrait work.
Time to find a new friend to model for you... your model has a very unique look so she is easily recognizable, and you keep using the same basic idea of painting shapes on her face. A nicely done shot, just a little redundant for me.