a wonderfully funny idea to put a game like overcooked in a mortuary - there's plenty of room for hilarious mishaps and dark humor. the system as it is shows promise already!
one little nitpick (that I am a bit sensitive about): when you use pixel art I think it's vital that pixels are of the same size (as a general rule that can be broken of course). it was probably a time thing in your case, but maybe you never thought about it. it will make everything look so much more coherent and as if it belongs together.