While Daimon and the girls might sound to be dressed in a flashy way, that wasn't the case at all, the pair of queen and princess sisters, were wearing their own attires.
Mellie was wearing a mix between a dress and a battle armor which included a skirt, leg and arm protectors, a chest plate, gloves, stockings and armored shoes as well as a tiara with blue gems and a pair of dolphins over a crescent moon, she perfectly fit the description of a princess.