Given Raora just posted it on her Twitter 28 minutes ago, I severely doubt that's fanart; it's probably a piece made by her mama, Nekojira.
Her title is "the Artist with the God Eyes", so its likely she's an artist and drew it herself
I have a terrifying thought, what if in a alternate reality nerissa could draw like ina. Imagine the utter flood of thirsty fanart from her.
Reality would implode with thighs and booba