Is it supposed to be a realistic-looking orange or just representative? If real...then the materials aren't quite there yet. It looks too CGish.

The shadow looks a bit like a photoshoped shadow. Or possibly without raytracing. Seems a bit harsh on some parts of the peel.

Also the end of the peel is missing (it looks as though the peel is hallow)

Is this just a personal project or for a client? I'm just curious as to what the subject matter is

Other than that, it's a very unique logo.