From what it looks like this is your first game, (or game jam like you said), and this is a great first step. I couldn't even submit my first entries of the jam because I didnt finish! (This is my 4th year doing the gmtk jam and the only time I submitted a game). Something I would recommend you to do is still add a proper thumbnail. It may seem like that would be pointless but it still attracts more reveiws which can give you alot more advice [even if it is using the unity capsule]. Also the idea is incredibly creative, kudos for you!