The colour scheme definitely says "magma" due to the yellows and reds. The general shape looks good and I'm getting a definite drake vibe from the MOC. One suggestion though, while the dark background is great for suggesting a cave environment, it would have been nice to see it against a lighter coloured background to make out the detail. not for all the shots obviously, but maybe two or three at the end perhaps against a white background.
That's probably the only major thing I'd have done differently.