love the idea/concept and it seems to me the subject is a little bit ambigous - she clearly doesn't like how all the eyes are stripping her but I can't help but I also feel like she enjoys it somehow. Maybe it's her erotic pose that she would clearly avoid if she'd dislike it that much..
This to me is a great bit of damsel-in-distress, in that it's sexy in it's own right, and then adds the adrenaline rush of being trapped by and in peril from a vague danger. The viewer feels torn between sympathy for the trapped woman and a hope that she escapes her desperate state, but also a kind of sly identification with the captor faces--in that the viewer is admiring her beauty and the spice added to it by her peril. The fantastic setting and nature of the peril makes creates a safe mental distance, where a more realistic portrayal of a woman in danger might feel too uncomfortable. It's quite a balancing act, and you've done it really well, IMO.
And I just realised something that adds to the horror and gives it an interesting subtext--if this really is a "box" that entraps her on all sides, then we're probably seeing her from the point of view of one of the leering faces.