Huh...! I think this is the first fairly large group shot I've seen you do digitally. Nice job!
I like the overall effect of the stars the atmosphere it creates. Reminds me of a holographic trading card of some kind.
One thing that you missed is the shadows cast by the fire. They'd definitely add a little depth to the image, and would probably be a pretty deep dark colour (since the fire on the opposite side is so bright).
Overall, really neat stuff! Keep it up!
My fav character's definitely the bird creature.