There's not a lot of depth here, but the fishing mechanic functions, which is good.

There was something about the combo of the jagged aesthetic of the empty world, beautiful music, and the babble of the river that just made me feel something? Honestly, the atmosphere you created is really fantastic. Feels a little vaporwave. 5/5 style points for sure. 

Good for your first game. Maybe incorporate those beautiful aesthetics into your future projects!

Also, I think we'd all like to know the great songs that were on the radio lol