A wonderful improvement over the fire image I helped you with so long ago! I think your lighting really works well here, and helps give it a mysterious feel.
If you wanted that feel upped, I could see darkening the background summore (it'll also make your fire look brighter), but that's really more up to you, I guess.
:) Excellent work--keep it up!
This is pretty cool... I love the dragon and the flame is very well done. Awesome job :-)