I like the composition and mood created by this image. The connection to the challenge theme is not really evident to me though. Having said that I do like the model's pose and expression. The style of the image makes the model look a little bit alien in the environment which I think adds to the impact.
looks almost like you pasted the girl in here, although i'm guessing you didn't considering the ruleset. that being considered, interesting interpretation for the challenge.
Odd post processing. The foreground female appears to be pasted onto the backdrop, which I suspect is a result of aggressive sharpening, The size of the entry is rather small and if you had utilized the maximum 640 pixel allowance, better detail would be seen in the female's eyes and facial features. The backdrop can use a slight boost in contrast to make the night sky really dark. This would improve the posterization effect evident in the girl's hair/hat. Overall there is nothing glaringly deficit, and I wish you luck in this and future submissions.