I feel like Jojo Siwa’s style is reminiscent of the colorful teen girl fashion of the late 2000s and early 10s. Back then it was considered fashionable to use lots of colors, accessories, etc. Take a look at Jojo Siwa:

Very colorful, generous with sparkles and accessories. It’s meant to be fun!

If you were a kid in 2007-2012 you saw something similar in the clothing the teens in your sitcoms wore, although not as exaggerated. The fashion in Shake It Up(which came out in 2010) is a really good example of this:

(You may laugh, but this was the height of fashion to 13 year old me.)

The point is, Jojo’s aesthetic is similar to being a young pre teen girl walking into Limited Too for the first time.

me: oh, mighty professor, bearer of knowledge infinitely superior to mine, I humbly beg thee to answer my lowly cries for help interpreting the sacred texts which I, but a small pupil of your elite occupation, dutifully study at your excellency's demand. pray tell, will you condescend to clarify, when the moment pleases you, to which of my meager mathematical calculations does this elaborate visual diagram apply?