This lil' girl is so adorable and I don't see people make her LoRA in Illustrious yet, so here you are. :-)

Use vanellope to summon her, use these default outfit tags depending on the composition tag you choose.

close-up : high ponytail, hair tie, candy hair ornaments
portrait : green hoodie, black skirt
cowboy shot : striped pants, multicolored legwear
full body : black footwear