The slightly off-centre composition just makes it look as though you wanted to avoid centring the lemon. I prefer composition to have an artistic reason behind it. The colours seem washed out.
I would like to have seen this rotated more so the inside of the fruit was showing. The glare on the side of the grapefruit is a bit distracting and I think rotating the view would help that. I am not sure that the piece on the bottom serves much purpose here - I think I would try it without that added.
I am going to say that the lighting is a bit bright. It is washing a little of the detail out of the skin and the flesh of the grapefruit. I would have centered it in the frame/crop, since it is a lone subject