Had to laugh at a couple of the comments... Since I was there I know what time & chance you had to control that one ;-) It was a good concept & great shot given the stuff going on. I have a couple of the same subject; I will dig them out in a while and post them with the others now this challenge is over.
It feels tilted to the left, probably because of their height difference. I don't know if you had control of how they were positioned, but if the tall one could have been in the middle, and the shortest ones on the ends, it may have felt more level.
This was a nice idea but you lost control of your models from left to right.
the first, has a pasty smile that says "I'd like to make you eat that camera"
the second, nice smile but her eyes are closed.
the third, is trying to look sexy but looks predatory like she might wanna eat me! (no dirty thoughts)
the forth looks like she would rather be anywhere else.
the fifth in brown suit looks good.
the sixth isn't looking at the camera.
the seventh doesn't doesn't look like she belongs with the group and you only got her head.
One more thing, it's looking a little soft on my monitor.
But it looks like it was a nice day an you had plenty of beautiful models to shoot.