Nice work on this.
Since you mentioned your goals were to work on your art and UI, I thought I'd send through some feedback relating to that:
- Firstly, the cats are great, and I think the mixed media of fully digital and real images is a great way to accentuate the cats.
- The way the spinners grow when they finish really draws your eyes to them, this is really well done. Its a little tricky with 3 spinners at once, but having a way to prioritize whatever animations are playing such that the player can focus on one element at a time can really help the player to appreciate your nice animations, and really sell the impact of one action into another. A good example of this would be a game like Balatro, where the animations go left to right one after another.
- Little ambient animations like the way the cat names wobble also goes a long way.
- Whilst not specifically UI, some feedback (maybe cat noises?) upon purchasing upgrades would help the game feel more responsive.
Good luck with the rest of the Jam!