I spend my week-end drawing some concepts for our graduation movie at school and those things came up... gotta make some new character concepts again, but it just so fun to use old references. I found myself using old cinema shots and actual cosplay at the same time ! As said by someone in my team, this is a little bit too "Steam-DaftPunk-ish" but bits and pieces will go in the final concept.
[Updated] I add the red dresses in the previous concepts.