cover of Shi: The Series #7 by Crusade Comics, with Shi (black haired East Asian girl in a quilted red bustier and leggings, she is in a boobs and butt pose with her far buttcheek and leg far back and below her near buttcheek to show both, her buttcheeks are bare as she's wearing a thong (apparently)

When you misjudge the amount of quilt you have to make a costume from

I assume this is right after that uncomfortable sleep Shi had and she's still trying to get herself right.

That, or she's self-conscious about running out of quilt to make pants and the rest of her top from and she's twisting herself in a boobs and butt pose to turn away from the people behind her.

(Cover of Shi: The Series #7, Crusade Comics)