This is a very attractive simple shot. I thought I did not like candle shots until I saw this. Great use of B&W and a lovely contrast. Nice crop and negative space. Possibly could be centered but I'm not complaining...back to bump you to an 8.
A very nice, simple composition, but perhaps one more click to the right would bring out a little more detail along the rim and give the flame a little dimension.
I like your idea. I don't like the b&w. Part of the fascination of fire for me is the colors it can create. Nice composition but like I said I need it in color. 5
Ooooooh. This is so obviously meeting the challenge, and doing it in such a unique way - the first shot I've come across where the flame isn't orange/yellow/red. It gives my eyes something new to ponder, and I applaud your monochromatic idea. Border and centered composition add to the elegance of this shot.