This is really good for your first game! I think your first game is much better than mine: https://red-cube-gamedev.itch.io/my-first-game
The only minor change I wouldv’e done is try to make it harder the longer you stay. So it becomes hard for the player to survive longer.
The art does look great and the music is even better.
There is also another change I wouldv’e done. The player don’t know what the controls are and have to kind of gues. It’s an easy fix really just right down the controls in the description of the game.