Very nice in the way you kept the colours from running together, considering the relative similarity of the palette. Perhaps you could have gone with a darker background though to add emphasis to Deathwing, as that explosion over his head is somewhat distracting and maybe could have been better if kept black. Aside from that great job, particularly on the crystallized look on the wings.
Thank you very much! Yes I realized exactly what you mentioned is completely true I did rush the background because of the short time frame I had. I might go over it again with a darker background like you mentioned thank you!