Personal Work - Updating 2nd Year Animation for Portfolio

I decided to re-visit my final piece from last year's animation unit, as although I was happy with it at the time, my skills as an animator have improved, so in order to make this piece worthy of my portfolio I felt it needed to be updated.

The main difference the new version has to the original is that I added a moving sky into the background. My animation was criticised because of the blank white background and at the time I had no time left to change it, so I decided it would be a priority. 
Another difference is that I added tone and shading to the dragon and his surroundings to make the picture seem less flat. 
I also changed the appearance of the fire breathed by the dragon when he accidentally sneezes and burns the butterfly, making it a more detailed flame compared with the scribble it was before.

The new version can be found here

Comparison between the original opening shot (top) and the updated version (bottom)

Comparisons between the original fire frame (top) and the re-drawn version (bottom)

Comparisons between the original storm scene (top) and the edited version (bottom)

Comparisons between the original morning scene (top) and the updated version (bottom)