Looks like you used a flash. It was a little too harsh. The hot spots on the bottle are distracting and burn out some of the lettering. Looks like the bottle is on top of two sheets of paper that are lying on top of one another (The bottle was too big for just one sheet I suppose) There is very distracting line running across the photo that indicates this. The neck of the bottle loses focus as their is not enough depth of field. Nice Idea. Just needs a little work. Maybe if the bottle were sitting up it would help also. How bout some shot glasses? alot you could do with this idea. I think a good take on the challenge.
A diffused light source instead of the direct flash would have benefited this. Also, it might have helped to either tilt the bottle to the corners or make sure it was straight. The slight angle does not do anything for me.
The shadows and hot spot from the flash are distracting. You might try pulling your subject away from the background and/or repositioning your lighting.