She can draw whatever she likes, but if she is to go far, she must have fundamentals pummeled early into her brain.

Things like figure drawing and color theory. Doing repetitive studies on mundane everyday objects.

Once she got that down, she can branch out to whatever styles she wants and her artwork will still look really good, while the art community at large will take her seriously.

Dont make the same mistake I made by learning only manga animu stuff.