Hey so this looks like good progress but its not really clear what your tryign to achieve?
Off the bat the fire looks very noisy and high frequency and it won't really look right until you add smoke comming from the flames. What is this for, a showreel or just testing?
Either way I'd upload some reference that you're trying to match so that people can give more relevant feedback. If this is for a showreel you should think about texturing your wood and having the fire illuminate the model at render time. Ideally this should be in a shot context so maybe taking a photograph of a field with a HDRI and putting the shack in the environment.
FX supervisor - double negative