Really impressive work getting everything done as a solo dev in your first jam!
I feel like it's rare to see narrative games in a jam and you made one that was both sweet and funny. I was genuinely invested in what was giong to happen after I came back from that final trip, haha.
Some of the little details are the things that really made it: moving in litle bird "hops", the "Days" sign constantly updating.
The only feedback I would have is that it would be nice for the sponge puzzle to be more naturally integrated rather than needing to spell it out in the description, but I assume that was probably due to time limitations. Otherwise it was a really great experience!