I voted for Jan's shot because, although I couldn't work out what it was, it was so creative. I'm glad of the subsequent explanation.
I loved Levina's onion for its narrow depth of field, the way the white of the onion blended into the white background and the soft reflections.
The third choice was difficult, but I chose Rosalie's photo because it was a nice shot of some actual peel.
I'm sure the fault is mine, but I'm afraid I couldn't understand the relevance of Martin's shot, unless it was interpreted as appealing (which it was) rather than a-peeling, but I was troubled by some apparent processing artefacts in the blue.