I am not sure if you already do this, but a thing you can try to do, is variation of your cover image, with each of your updates.
The thing is, your game's title is not really saying much about the game. And neither is the current cover image. The only thing it shows, is your art style. That's not a bad thing to show, but think about it. You show a woman and have a game title that does not have meaning. It is probably a made up name. From that combination, I would assume, this is a female protagonist game, and the prot is named like the game.
Oh, and you still have no rpg tag, but write in the description, it is an rpg. If you are unsure about the tags, maybe ask your patrons, how they would tag the game. They know the game, and are players of such games, they are bound to have opinions about what tags would apply.
The monster girl tag was suggested, because you wrote this Yes, there will be non-human characters in the future