This is a pretty disturbing picture. I'm guessing the overall format was supposed to be ironic. It didn't come that way off to me. I do think it's a good one, because it's quite well detailed. I think you even wanted to make it look like the food fit her body typer perfectly. It looks like the sandwich could eat her!
It's somewhat sad to see someone doing that to themselves. I guess you don't have much else to do. The blue background seemed to contrast well with the foreground. It might not mean anything, just an observation. That's a big stick.