Okay so I enjoyed the puzzle aspect of this game I thought that was actually pretty cool! I wish this game had more original assets and that you wouldn't say "if you find the game boring-" in notes, you should have confidence in what you made and if you're not happy with it work to improve it and not just disparage yourself. I think on important thing to work on is scale, it seemed our MC is super big compared to the environment towering up to the height of the door frames. I'd recommend starting out with a smaller map first and working on that and the lighting to make it look as nice as possible.
You can see me play through and give my thoughts in the attached video: