The main focus does not appear to be on the fire, but on the individual sitting to the right. The focus needs to be on the subject matter - in this case the fire. The fire itself makes up very little of this photo and is not very sharp.
I like the concept, but found the object that's between the fire & the camera distracting. I can't figure out what it is ... a new log? Perhaps my monitor is off. I think a slightly sharper focus on the all faces might have helped.