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.
Stardust<< I love how this was done. You can see some of the light on her clothing, but most of it is just a silhouette, & the stars aren't typical at all, making this stand out among the numerous space pictures.