A commission for an unknown story.

Vanity, aka Emily, is normally a pretty pathetic Sin.
Only Sloth is held to be more feeble, but that is because he has no body as such and never does anything.

But where Greed is a tyrant and Envy a master schemer, Lust and Gluttony are dreaded predators and Wrath is terrifying even though he has chosen the side of good, Vanity is nothing more than a feeble shadow, shuffling through Hell clad in a musty cloak and stolen skin, mumbling incoherent phrases about beauty.

This writer deemed it time to delve into a more proactive side of her personality.

Her depiction is not too accurate; as hinted before, Emily actually has no skin.