In response to your request for an in depth critique from the Critique Club, here ya go.
My first impression is that this does not fit the challenge. Fire COULD be considered an 'oops' if it were your whole house on fire, or something that's not suposed to be, but as someone else mentioned, a fire in a fireplace isn't exactly an oops, it's an on purpose.
The second thing I notice is that you submitted your pic to the challenge, and havn't logged back in to review your feedback once since the challenge began. That makes me wonder if you will truely appreciate my time in evaluating your image. That being said...on to the image.
Even after you point out where the faces are, I still cannot see them, as many others did not see them either. Not that the faces would have helped this fit into the challenge any better, but at least then we'd know what the title meant.
The fire itself is pretty, and as konador pointed out, the blacks don't seem quite black to me, and does kind of look a bit 'light' in areas that in my opinion should be dark.
I like how the subject completely fills the frame, no real need for negative space here.
Overall, interesting image, but suffered for lack of connection to the challenge.