Really like your idea here. Nice work on the drawing as well. The background is a bit strong for me. I also wonder if it doesn't take some color away from the apples. Just a thought - again, nice idea/take on the challenge.
The lighting is very nice, soft and even. The title and subject are cute. I enjoy the colors and I think that the simple composition works well here. I wish the "bad apple" was a little less scuffed up, I find the natural lines distracting from the marker lines.