What happens next in this paragraph?

She then twists the braid and pins it up on the model's head. She twists it again and tightens it up and secures it with a pin again. she
OPT:
[I] then twists the braid and pins it on top of her head.
[II] then lets both of her hands go and clips her braid off from the model's head with the hair handstand.
[III] reappears holding a hair tie and giving the model an encouraging smile.
[IV] also makes a bun out of the braid to complete the hairstyle.
[IV]