The Belles by Dhonielle Clayton
Dhonielle Clayton, one of the authors of Tiny Pretty Things, also wrote The Belles, a fantasy tale set in New Orleans. The protagonist, Camellia Beauregard, is a member of the caste, The Belles, meaning she is regarded as beautiful. In this world, beauty trumps all else. The book follows Camellia as she vies to be the chosen Belle, and finds that power may not be what she wants. It's a perfect follow-up read!