The undead theme with chibi characters created a fun charm. It took me a couple of in-game days to understand what I was monitoring and how to change prices effectively without upsetting shoppers, but that was the fun of it for me! The gameplay loop felt properly scoped and contextualized in your design document. Your UI mockup looks like it translated well into the game; I like the way you chose to plug information and visual concepts into your interface.
With the types of interactions going on, I felt a noticeable potential in the soundscape of your game. There are events deserving sounds that could improve the listening experience of your busy environment. For the duration of this jam, I am impressed with what you came up with and accomplished.
The ghost reminds me of a salt shaker, lol.