A simple but complete game.
The visuals are very charming and really goodlooking. This does not only include the spritework but also how the game is represented. Really liked dramatic effect.
A few soundeffect here and there could go a long way.
As a tip i would maybe try to think a bit more outside of the effect with the theme. A unique theme can make the most of a simple game. Think if removing the theme related element would change anything.