It's a great game and well executed. It has good graphics and I loved the music, all of the tracks were amazing. The gameplay loop is solid and can be easily expanded upon. It's also really polished, so you had time to make it really cool looking and even more enjoyable.
It was a bit too hard in the beginning, there could be some easy start, so then you get into the actual difficulty, because later it was too easy. But it's for sure hard to well-balance game in game jam. Also, not sure what I could do with the things I bought in the store it wasn't super clear.
I wish I could do more stuff in-between waiting for the fish so it could pop-up less often, just as some additional flavour. Depends on the direction this game would like to go into. Just an idea, not a complaint.
Really impressive, good job!