First of all, congrats for your first game jam!
For the pros :
- The cover, the first room and the design of the card are cool
- I think that the shop could be a main feature, it's interesting
For the cons :
- I couldn't find the way to exit the shop
- I was searching for the enemies for a moment
- Adding some game feel to the combat would drastically increase the fun (below are some of my fav videos on this topic)
Keep going!