In this tutorial, we will learn how to model a tutu skirt in a very smart and realistic way. Also, the modeling path of this skirt is such that you can get ideas from it for your other modeling.This tutorial is presented in a very simple and smooth way, with repetitive movements, and in the form of a time-lapse.You can ask your questions in the comments.
https://www.artstation.com/saharkhazeni/blog/9AEE7/tutu-skirt-modeling-in-marvelous-designer
A product that has a tutu skirt: https://www.artstation.com/a/50211970