I would buy a closet rod/spring loaded curtain rod and a straight hanging curtain or piece of fabric to cover the pantry. Straight hanging keeps extra fabric out of the way- no pleats or ruffles, and preferable tabs and buttons on the top, or wide metal grommets. Choose white or another bright color, since you say your kitchen is dark. Can you add lighting anywhere? Cleaning up the clutter will brighten the kitchen, because there will be more clear spaces to reflect light- especially getting the front of the fridge cleaned off.
I've always wanted a fridge covered in pictures and stuff, but it just makes everything feel so closed in. I think that will really help out to get everything off of there. (Maybe just a couple magnets? )