There is good detail and the focus is very good. The biggest problem I see here is the shadowing and the redtones to the right side of the photo. The take away from what had the potiental to be an exceptional photo.
It does meet the challenge but I would have liked to have seen a little closer crop.
For this particular challenge, I would have liked to have seen you pull in a little tighter to lose every bit of the background. Your lighting may be a little harsh. Losing the reflection on her forehead and cheek might soften her skin and complexion. Nice capture of her eyes.
Poor Lisa, why is she sad? Good idea for the challenge, however I think there is a little too much red tone throughout. Maybe tweaking the color balance in PS might have helped a little here.