Difficult photo for dappled light, it is hard to get a close up portrait to work well. Under the circumstances it came out pretty well. A smile would have helped a bit.
I like the contrast between the two eyes. very nice. It could be a little sharper but it's still nice. I would like to see the color version after the challenge ends.
Nice shot. Too often people choose B&W for no real reason other than to be "artistic" but, in this case, it was s good choice. It really makes the lighting more dramatic. I do wish you'd have stepped back from your model just a bit though. She seems just a little too close to me.