My version:

Reference images:

Analysis (whoo, scientific): You can't really see much of this style because of the headdress covering the whole head. However, if I had to guess, I think it's probably similar to both the second Tatooine style and the Nightgown style. For one thing, there's room for it underneath the headdress, and the loose curls look similar. There is a piece of hair hanging over either shoulder (see picture 2) and you can also see from picture 3 that there are more curls hanging down in the back.

Directions: If this is indeed similar to the Nightgown style and the second Tatooine style, you would start by parting the hair slightly and then pulling the curls up and back loosely. Bring a piece around to each shoulder and leave the rest hanging free in the back. That's it!