I think the storyboard at the beginning was a great idea to give it some context, really elevated the game. Also love your take on the necromancer theme, its really different to ours and definitely way more funny :D Investing some more time post jam to give it some polishing and to remove some bugs would be worth it imo.
An option to delete parts from your inventory would have been nice.
The different behaviors of the body parts weren't always clear to me, it might be a good idea to put a short description of the different parts on your game page similar to how we did it with our game.