I definitely agree with tbleazy's note about the procedurally generated art waiting til after it passes off screen to despawn, I also would have loved to see more feedback to the player if a successful mail trip was done- maybe a green light on the mailbox or the mail flag changing in some way. I think it would have also been cool to have someone / something come out of the door when the letters are getting delivered. I like the concept though, and good on you for doing procedural generation for a game jam!! That's sick