Nice game and a good submission for the jam! It was a really chill atmosphere and as has already been said although you didn't make the assets involved you combined them really well and nothing in the game felt out of place at all. It was a heartfelt little story and I liked the idea of giving up things that make your life easier and the trade off simply be a good feeling that you've helped others :)
The one minor thing I'd change is to reduce the frequency of the cow moos, it took me out of the moment a bit when it wouldn't shut up haha. But great game nonetheless and to hear it's your first project is brilliant, you've done a great job on this one. Nice work :)