ok now seeing it in the larger version, not just the thumbnail, i'm starting to like this one. it's not the typical beautiful-face-of-some-25-years-old-blonde, but a really well done portrait of an "average" woman, which tells a lot of her (your) personality. technically seen, the only thing that bothers me a bit is the hair beeing a bit dark on her backside. the b&w works really well and the background (though a bit tilted...) gives a good softy contrast to the rather harsh lighting on her face.
overall i think it's one of the best i've seen in this challenge and gets a 9 from me. good luck :)
i am not keen on this photo - the slotted blind behind you does little to compliment the portrait, and your pose looks rather uncomfortable, as thoug you didn't really want to be being photgraphed.