The theming on this game is very well done. The visuals are fun, although it would have been nice to have a bit more animations and juice. The sounds are very on-theme as well, but I find it a bit tiring since you didn't apply any pitch shifting to them.
On the gameplay side, I would have to say it's a bit too tried-and-true. On in other words, I thought the cards themselves are too alike in games like Slay The Spire and doesn't offer much in terms of originality that differentiate your game from other deckbuilders, except for the theming. Although I understand that it is a game jam, and not always possible to come up with unique mechanics (or implement them in time), but I would be interested to see if you can apply some unique spin to the genre from your chosen settings.