I like the graphics but I miss one of the key elements of this genre, in my honest opinion, which is the rooms and room transition
The level has some walls that can block your path unintentionally, like the colliders are not well separated, and in terms of game feel is a bit hard to control
But, having in mind this is your first game, I think you manage to build something interesting and also, even if music is missing, I encourage you to take note of all your learnings, not only in terms of game engine or code, also time management, estimation, etc.
I truly believe you can be very proud of your final result :)