Yeah, this game is made with generative AI "help"... There are some definite signs.
The cartoon/anime "witches" in the various pictures basically all have different eye colors, hair styles despite having same hair color. Basically just pressed generate a few times on probably even the same prompt.
Wierdness on the screenshot room. Weird "items" that are nondescript and don't looke like anything
The assets too have these weird stuff on some of them, don't know if it's entirely by hand design
Anyhow. I think it MIGHT be still okay ONLY IF this is a hobby project that wasn't and isn't going to be for sale at all. Otherwise the legality is questionable.