Great idea, shame you didn't get it finished but that is hard on such a short development time scale. I'd continue it at least to a finished state as it's a great way to learn to complete a game. To be honest jams are really good at teaching you how to complete a game (at least in a rough form) as that is really a hard skill to master.
I'm still learning, I trend to leave sound/music and polish to too late and so never do a great job on those. However you do improve the more you do! Keep Developing :-)