Pros:
- Nice cutesy artstyle
- Puzzle system seems to well thought out and has lots of potential for making interesting puzzles
- Music and sound design matches the theme/gameplay very well
- Has great replayability, even if you finish the game
Improvements:
- Maybe make the diagram that shows which animal eats what a bit clearer (the arrows confused me initially, I thought they suggested the opposite of what they did)
Overall, a very well polished, well designed and high quality puzzle game. I'd definitely recommend working on it in the future.
Nice work!