Actually a pretty good game. I was able to beat it in one go, but it's still difficult enough to not need any balance changes. It obviously has a lot of gameplay mechanic inspirations from Slay the Spire, but there's still enough unique content that I can't say that it's stolen.
That said, there are some things I would like to see added. Just like in StS, I would like if you could see what the enemy intent is by hovering over it. It's always a guessing game, especially in boss fights where those intents are unique to the enemy.
But actually other than that, I can't really think of anything else. That's just how good this is. I like the special visuals mechanics you have around taking damage, and choosing different cards to your deck. It's a very nice experience overall, and while it does use AI art everywhere, I can understand it because the game is still good enough with it.
Just keep doing what you are doing, you clearly know what you're good at.