Great concept! Loved the art and atmosphere of the game. So big applause for that.
Since it is your first game jam, I would like to give few pointers for the future. I suggest lowering difficulty, like spawning animals at lower rate and making them slower and gradually increase game pace from there. The thing is that currently you need to run from enemies and eat at the same time to survive and it gets really complicated when enemies are that fast. You pretty much just run away without having time to eat and die from hunger. So this improvement would help a lot.
Other thing you could add is indication of what you can eat. Like white outline for animals/plants that can be eaten by you and red outlines for animals that are your enemies. Colors would help to guide player where to go and what to do and what is the danger you should run from.
Overall, congratulations on your first game jam. Good luck on your journey and keep creating games!