Good show! You're definitely getting the hang of the whole fantasy-animal illustrator thing. The colors came out well, and the rendering for the crystals/scales is the best part. You can really 'feel' what it would feel like if you somehow brushed up against it. The overall design looks nice as well, and the teal crystals on the underside are a nice contrast. I think you could get away with putting a lot more of them on top, maybe as even some sort of 'border' like an ankylosaurus would have.
Only things I can think of to maybe change would be the front legs, because I think one would be down while walking in order to support the front of its body.
I don't get what the rating system terms on the side mean (the DA stars) -> They're all very subjective terms.