It is the lighting that caught my eye. But I think you captured the wrong moment. The extended arms blocking crossing the bodies the other girls ruin the overall effect. If you had captured them in another position where each stood seperate from the other I think this would have been an excellent photo. I guess we can`t win them all.
It may also have been a good idea to focus of the first few girls. The dark objects extending from ceiling to floor is distracting and ruin anything gained from including the second group of girls. It makes for a strong image as well.