Really beautiful pixelart and the game has an awesome feel! I like that the difficulty is balanced and so its not too easy to play :)
I think this is already very polished, but if you’d like to do some more polishing, maybe you can swap your UI elements to be in-line with your pixel art style.
Eg. Maybe use pixel fonts: https://fontmeme.com/fonts/pixel-square-font/ and maybe a pixel health bar?