I found this:

"in case anyone is interested, there is a lot of foreshadowing of how the girls killed themselves in this picture. lux's hand is in the exact same posistion as it is when she dies. When her hand is out of the car, she is holding a cigarette. the next girl, the one who overdosed on sleeping pills' eyes are closed, as if she is sleeping. next to her is the girl who stuck her head in the oven, and she coughs after the photo is taken. and the last girl. she is the one who hanged herself, and her hand is in the posistion as if fixing a noose. also, if you look really closely, you can see a line behind her that resembles a rope. sorry if that creeped anyone out, but just thought anyone who is interested in this wonderful movie might find that interesting. now i hope someone reads that because it took me a while!"

the picture: link

I thought this was interesting, I never noticed it before!!