Very cool small souls like. The controls are good and like the pixel-art.
It would benefit from some 2d light effects, I think that could contribute to the overall vibe of the game.
For controls I think the gravity is bit high, the player falls quite fast after a jump which is cool for a jump and run but fells kinda off for such a typ of game.
Overall you did a amazing job.
Awesome that you made this in only a month!