Really polished and well made, its a lot of fun figuring these puzzles out, i like the minimalist very clean visual design as well, i'd say this just needs some more levels, but i totally understand you didn't have enough time to make more for the jam's deadline, as these puzzles seem carefully crafted.
Appart from the text issue which has already been mentioned, i don't see any particular issue here
so, congrats on your entry dude :)