BG for 'Koyan's Sex Services' Visual Novel (Patreon)

Regarding Gobbo's development, I have hit a creative wall on enemy designs for the implementation of a combat system. In the meantime, so that I don't lose creative steam, I am working on a visual novel fan-game featuring Koyanskaya from Fate/Grand Order. Attached to this post is the first background I have drawn for the game. My hope is to create an interesting story from Koyanskaya's perspective with lots of erotic situations.