I like the art, simple but effective and the gameplay is good. I love that you choosed metroidvania genre, but I think that you shouldn't have used a Hollow Knight song. It is like if I made a platformer and I use Super Mario theme. There is a lot of free unkown music that can fit very well with your game and make it more charismatic. But maybe I am too Hollow Knight freak so don't mind me too much. hehehehe. Anyways good job!