Wow great piece! Really love dragons so, I am so happy to see one! I think you did a great job! The interpretation of the theme, is spot one! I also really like the colors you used and the composition, you did a great job!
My only two small critiques would have been, first that I feel like in that perspective, they right eye of the dragon, could have been a lot more visible. And two, that I feel like through the piece there are some single pixel (or double pixel) placements, that I feel create unnecessary noise!
Other than that, I think the piece looks awesome! Great job!