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.
John Lee Hooker: (August 1917 – June was a highly influential American blues singer-songwriter and guitarist. Hooker rose to prominence performing his own unique style of country blues. He developed a 'talking blues' style that was his trademark.