I love the contrast of light and dark in this photo. I also love the symmetry that the shadow creates (a line down the middle of her face) Also, I love close ups on emotion, this draws in the audience and makes them feel the emotion.
The ray of light peeking through the crack creates a blinding effect on the subject. The light is so bright that it blinds her vision, covering her eyes in the photo. The black and white filter makes the ray of light even more bright.