The bright colors of this amazing piece are well put together, it reminds me of fire, which suits the dragon. I love the Chinese look you gave it, especially the hair things and teeth.
Nothing needs to be change, but next time I'd like to see more full bodies, your dragons would look very pretty, which many a portrayed as.
You have a lot of potential, you could be really big, I'd buy your prints if you offered them to me.
You are very good in painting!