Hmmm, this is a shame. It is a terrific portrait, works well with the challenge. I don't get it. I am guessing the high-key hurt you. Still nicely composed, great mood set by the colors, and good use of depth.
A lovely shot but perhaps a little too generic for me in terms of challenge criteria - by that I mean it could have been entered into portrait, or high key, or DOF, or . .
But it is a lovely shot, well lit and clearly displays DOF so you get a vote from me :-)
Back to bump up, the shot grows on you. Good work.