Neat game! Since it was for a horror jam, it would have been cool if it progressively got darker and creepier as you walked along - maybe even greying out the colour scheme, showing some crime scene elements, bloodstains, something like that.
Maybe having some items that you aren't meant to pick up, where you have to pick and choose which ones to pick up, could be cool, but I guess that might change the idea of the game too much. A time limit might raise the stakes a bit, where it auto-walks and you have to get your bag in order before you get to the next item. Just thinking out loud!
Good job, especially in 2 days! :)