The woman falls willingly into the arms of the Devil, but her eyes
are closed, showing that she is in denial. As long as she keeps her
eyes closed, she can maintain a victim mentality and not have to
admit just how far she has fallen.
The moon above them is somewhat obscured and about to be covered
completely by dark clouds. I think this symbolizes our unclear thinking
and cloudy judgement when faced with addiction and loss of control.