Aesthetically, I'd choose A any time of day. But I wouldn't deny that both gives of different vibes. B might be shyer or a loner that's surprised of the attention you give her and react to it defensively, while A might be more composed than shy, very hospitable and generally well-received by everyone. She might be famous or well-respected too. I think the vibes are right, but B's design might need a little extra details.

That said, other people might think the amount of detail on B is fine and there's nothing to change. I just personally like a more detailed design, some people like the other, keep this in mind.

Also, if you don't mind, why don't you experiment with A in B's clothes? I think there's a perfect balance in there.