how to draw a cape and the folds

[tidal breach]

heres a few examples of what i am aiming to draw btw sorry if the pic is blurry and a few other photos

[minor sedge]

https://youtube.com/shorts/o743tiKIlQk?si=Zsdw78_-MLGsWdtv

Good starting point, and Jadokar goes into more depth in other videos