This project is a good idea that would be fun to design, but you want to know the situation is awkward, at best.
You’re using a large language model for the code yet care ask for the real skills of artists. Granted, mixed use is better for the real-life animals’ homes, to not support their destruction as fully as if everything came from generative models.
But I doubt an artist will trust designs won’t be replaced by AI-generated images later or bother to provide original work. I wouldn’t be able to shake off that feeling even if I was willing to promote the game.
My advice if you want any is to disclose where the images in the posts above are coming from and why human-made art matters to you.