From the concept and setup i really like this.
With a bit of polish more events, balancing and maybe some storry elements, this could be fun for a while.
I wonder though why you added a character designer :D, since it does not really add to the game loop and the time constraints on a game jam are usually quite limmiting in terms of adding entire features as a gimmick. Maybe you should have postponed that one to later.
Besides that, i do not quite see the connection to the theme here. Did you think of the “scavange” as a “run” ?