All armpits must be free.
Please make the leotard sleeveless (with the arm-cuts have pentagonish shape like the neck-cut).
ex:
http://vignette3.wikia.nocookie.net/bakatotest/images/b/be/Kogure_Aoi_Gymnastics.JPGFor the thickness of the shoulder-straps, please make them 1:1:1 of white:purple:white (by white, I mean the lining at the edge of the neck-cut).
Thank you in advance.