Well, I never did state whether or not the protrayals had to be 'real' artworks, in that they were, at one point, edible (and I, too, myself, have things in my queue that are just drawings of food), so the above, while I am leaning towards them being photoshopped (if only because of the strawberry) is alright nevertheless, BadNick.
Ah, I believe I have finally found the source to the works... they are advertisment posters for 'WMF Knives'.
(basically, it means they were photoshopped, in all likelihood).
See them
HERE.