Like the idea, think if you had included just a little bit of more lighting on the girl this would have worked so much better for me. Still good and got a 6 from me.
I love the lighting and colors - this is a very pretty image. It does not make sense to me why someone would look so sad at Chrismas lights though. Maybe because they are tangled? Hm okay, I will go with that. :-) I think my favorite part of this photo is the spots of color on the background... that's really nifty.
I personally don't mind that the girl is so dark, but it wouldn't hurt to have had another light of some sort illuminating her face a bit more. Also, I feel like I'm looking up her skirt - maybe pants or a different angle.