Regarding the rather industrial appearance of this dragon, I'd think that was entirely because this is a test bed. It looks like a standard ultralight with a dragon built onto it. That makes sense for a test because the idea is to see how it handles, whether it's sufficiently maneuverable, etc. If things work out, then a clear parasail, made of low refraction index material, would make the "wing" a LOT harder to see, and I'd be willing to bet that the propeller guard could also be less obvious. Think Lucite or something similar.
Has anyone come up with a Disney dragon that might have provided the prototype for the body, though? I'm no Disney movie expert, so I'm not even gonna try.