Lemons on table should have some fill light on them; or else moved into the existing back light. Also, I tighter crop (or different angle of prespective) to eliminate some of the distracting background would enhance this photo.
The shadows are distracting... also, I would probably prefer this without the cloth. It causes funny reflections on the top of the glass, and hides what could be very interesting wooden textures.
I like the idea, but find the shadows a little distracting. I think it would have added to the pleasure you were trying to convey if the face of the lemons were highlighted.