It feels nice to move around, but the character is too floaty and too drifty. Increasing the acceleration and the gravity of the player would make the game feel even better to play.
Also, the map has a lot of little tile errors that make the tiles show a 1px separation. It doesn't affect gameplay, but it difinitely makes the game look worse and less professional.
Keep working on it, there are many things that are great, you just need to polish these areas! 😊