Just looking at the thumbnail of this picture, I was mesmerized. The different shades of blue really complement each other without overpowering one another; you made a great decision in using mostly blue in this picture. I really like the details in the wings; the feathers are nicely done, and the texture looks a lot like a bird's feathers (particularly on the back). I like how the individual feathers are a lighter shade of blue.. they really stand out.. The background alone is fantastic, as well. The clouds look professionally done, though I think the sky looks a bit too dark. If I were to nitpick, I would say that the ice beam looks a bit odd (I sort of imagined the move as a stream of ice. Here, it looks more like a tangle of ribbons). The tail could have been given a little more detail, I think. But other than that, this is an excellent piece. A simple theme, but effective. By the way, I only gave originality a 4 because a picture of a pokemon using Ice Beam isn't exactly new. To keep with the theme of blueness and ice, I probably would have drawn Articuno using Sheer Cold or Blizzard. But, don't let that bother you; it's hard to draw something no one else has done.
If dragons are known to spit fire out of their mouths, why can't cool looking birds spit lightning bolts, ice beams, laser beams, or something else out of there mouths? Great job. My bird design is going to spit out a yellow/orange lightning bolt.