Thank you so much for this. Please understand criticism is purely out of our hearts desire to have more games that could change the world. Writing is a CLEAR strong point for this game, and likely it's creator, so don't be afraid to go find some royalty free music out there. the internet is here, and there are people who pour their souls into assets we can use for games like these. with some music and extremely simple sound effects, you can turn a tiny game like this, into something I would share with everyone I know. (I genuinely would too) the art and platforming are simple, but perfect in my opinion, because they set a tone, of someone who isn't focused on the sea around them, but is just pushing forward and upwards, trying to reach the signals of the thing that matters most to them. I would honestly suggest takeing some time to go through some royalty free music/sounds, maybe adding a small credits/game over page at the end, and then you could honestly sell this if you so choose to, but that is how close it is to a complete game, and I desire to see that.
That said, beautiful writing, thank you so much for submitting this to the jam for us to see!!!!!!