Very striking. I'm wondering how many people are going to interpret this as creative use of shallow DOF.
I don't profess to have a lot of technical know-how but this seems more like creative use of high contrast and high key lighting. I guess to achieve this fading into whiteness effect you had to start by blurring the subject a bit? But couldn't that also be the result of really extreme highlighting? I really like the photo quite a bit. I just am not getting shallow DOF from it. The bangs look a bit blurred in the front but I feel like I'm grasping to make this meet the challenge. I'm guessing you are going to get plenty of high votes from people who don't mind shoehorning a photo to fit a challenge if they really like the shot. I'm not really sure how to vote on this.
I don't really like how one side of the face has blown out highlights - it's a bit distracting because the ear just suddenly appeas in the white space.
Good composition, good expression on the model - overall a nice picture.