Ice with a hint of dragon.
I may or may not have watched How To Train Your Dragon 2 yesterday.Edit-
I made some modifications to the head and eye placement because they were looking very off to me, as well as adding a couple of subtle extra details in an attempt to improve it a little overall.
Also I made a larger HD background with a couple of lazy cloud brush strokes:fc05.deviantart.net/fs71/f/201… Edit-
Bonus rainbow version:fc01.deviantart.net/fs70/f/201…