Quite a meeting between girls who might look alike by far but have not much in common.
One is rather thin, with sleek hair, going for a girly style; while the other is fit and tomboyish, giving a rather sporty look.

I just wanted to show two different bodytype with that pic: you can make armless girls yet give them different looks, different personalities, etc...

I'd personally go for the sportish one! >_<