All the Colours from Blue to Green

Genevieve Feathergreen and her sister grew up under their mother's tyranny, whom controlled and repressed everything they did, shaping them to become two very different and awkward creatures. Now, however, Dawn is ill, and her daughters, wherever they are, finally have hope to be happier.
Green is a non-binary, happy-go-lucky aroace kid, who lives on a floating city. When their sister threatens to reveal a secret that could put all their family's lives at stake, Green has to go on a journey to prevent that from happening.
Blue's story is a quest to lose the identity forged by her mother, and Green's is a quest to find their identity in a world where individuality competes with a greater number's sake.