I like this piece, it has a "classical painter" vibe about it in the composition and the mood. Love the colour, and the sense of scale. I didn't recognise at first what the creature in the air was (I thought it was some kind of angel) but I see it now. Great work.
In my opinion the colour sheme is the complete opposite, it is a bit too high contrast for my taste because the rock and clouds have a similiar colour brightness, I think it could look deeper if the cloud brush strokes were more soft and the saturation different for the clouds, but I am not sure if this would fit your idea and composition of the image. I just did not noticed the drake in the sky because of it, but maybe that was your intention and than I am completely don't say anything critical here