Here is some footage that Jess from the group filmed of the cast rehearsing the dance.
First off we had Megan and Cara do the dance. Megan is an A2 student (she is the girl on the right), while Cara is an AS student (she is the one on the left).
From the performance you can see that Megan is much more confident in the dance, while Cara is a bit more elegant and gentle, moving in very fluid motions.
Eden (AS) is on the left and Maddy on the right (A2). Maddy is much more confident but very rough in her movement. While Eden only had 15 minutes to rehearsed but her overall movement doesn't flow as well as the other dancers.
Too see Cara dance more confidently we asked her to do a dance she knew, and she was familiar with a ballet piece she had to do for dance. As you can see again she is very elegant in her movement, she is very fragile in her overall flow, which is exactly what we are looking for.