I'm a sucker for foreign Superstar Barbies. By fave are the ones from Japan and Latin America. They are rare and expensive, but the facepaint is so much better than anything I've ever seen.
They were made in local factories and that must be the reason they are different. In Mexic they were made by Cipsa, in Argentina by Top Toys, in Venezuela by Rotoplast, in Peru by Basa and so on.