Nice, simple and effective. A run through neat image could clear up some of your noise issues. The noise could be from your fabric, but I think it would still look better smoothed out.
I like the idea, but the bulbs aren't pretty at all. Also the centre focused composition takes away from it. I don't really see why the bulbs are half sitting behind the candle as if hiding, as the bottom (metal) part could make the shot much more interesting.