Animation of the Double Jump

my guesses for the finished double jump look is either a crystalline set of wings (probably butterflyish/faerie to play off the whole stained glass look), a sort of magic afterimage coming off her a few frames 'pushing' her upwards, or a crystalline seal she pushes off of for the second jump that shatters after, they make the most sense thematically while staying away from visuals that would be distracting or obstructive to the player since you will be using this ability a LOT and will be using it in both combat and platforming, attacks can afford to be much flashier but movement you want as clean and unobtrusive as possible so you can focus on the surroundings