Yenra Princess Rosalina from Mario Bros. Princess Rosalina Costume: A woman dressed in a costume inspired by Princess Rosalina from the Mario Bros. series. The woman's attire consists of a long, flowing blue dress with white trim and a matching crown on her head. Her hair is styled in an updo, adding to the overall regal appearance of the costume. The dress features a sweetheart neckline and a full skirt that falls just above her ankles. The woman's hands are held out to the sides, as if she is about to cast a spell or perform some other magical action.