I like the idea, but it could have been a bit more intimate by: 1) coming closer the young lady's face; or 2) lowering the exposure of both face/shirt and the back ground (to maintain the grey balance).
Get the focus out of the center. Here is a trick, divide the composition equally into a tick-tack-toe board, where the lines meet, but your points of focus. This should be your rule, rules are made to be broken, but you have to know when and why. Technically a good peice.
her face is a little burned out on my monitor, and the sweater lacks detail. Maybe a bit of tweaking in curves would have brought out a little more detail? Nice composition