Following on from what Summer said I thought I'd stick my oar in too. I've been doing quite a bit o experimenting with lights and stuff against a black background. It's worth googling "Dark Field Lighting" and having a read (thats what I've been using). If I was setting up the shot, I would have 1 light directly behind inside a softbox, Place a piece piece of black foam core in front (this is your background). Reflect the light back using 2 pieces of white foam core placed at approx 4 and 8 o'clock (assuming camera is at 6). I would then use a second light (fitted with a snoot or grid, you can use rolled up car or paper to create snoot), this would be aimed at the CD and positioned at about 8 so the light clipped the front of the candle and illuminated the chocolates and CD. I'm not sure what equipment you've got but thats just what I would do. In fact I'd prob go further and stick a third gelled light behind pointing at the background, but thats just me
However like I said I don't know what kit you have so I will now critique on that basis. Personally I think it is a well thought out and well presented shot and definitely on theme. Given the light techniques you have done well and bought out the detail in the label and the chocolates, I'm not sure whats caused the halo, but if I was testing the low light capabilities of the 6D, why not bump up the ISO to maybe ISO 400 or 800, which will allow you to drop the shutter by 2-3 stops in case its something in the long exposure noise reduction.
Overall a

from me, oh and if you need any tips on what to do with the left over wine and choke, I'm happy to oblige