Cute idea. Two things I think could have improved this shot: Less distracting background and diffused lighting. The second one could have been used to really brightness the scene, and hopefully avoid some of the reflections.
Nice idea with M&Ms. I would have done the following to improve this shot.
1. The background is too distracting. A different angle could have used the white tile as background. ( Camera a little up)
2. Lighting from a different angle (back from the camera)
3. Focus is off. would have been nice if at least a couple of M&Ms were in sharp focus.