A concept of an Udenthen manta, a primordial aquatic demon dragon, that appears in my RAVAGE AND REQUIEM series. Unlike their winged amphithere relatives, the Udenthen mantas spit acidic venom from glands in their mouths as opposed to combustible chemicals.
I plan to do some more concepts of the mantas, as well as have some concepts of the burrowing Udenthen wyrms in the near future.