This game is very ambitious for such a short time, making the art and rooms must have been a lot of work! I think the art is the strongest aspect and having a boss battle is pretty cool!
That said, I ran into a few technical issues with the web version (the game starts to lag after restarting), so I could not play it to the end yet. Roguelikes are not easy to make, so I think you did a pretty good job given how little time there was!