Imo they are not even that similar. Only the general shapes resemble each other, but as you can see there are some easily visible differences:
- One has forehead showing, the other doesn't.
- One has side parting, the other has middle parting.
- One has hair lumped on one side, the other is an actual pony tail (although it's kind of hard to see the lightning hair so correct me if I'm wrong).
- One doesn't have a flower, the other does.
- One is messy, the other is neat.
Besides, not everyone has lightning hair. For those people even the general shape of the winning style is brand new, and I for one am happy there will be a medium length one-sided style available for everyone.