This is my vore dragon, whose job is mostly to facilitate vore and feedism (both sensory and sexual). He shifts colour and slightly shifts shape depending on what he eats (the example I keep giving is that if he eats strawberries, he turns strawberry patterned). One of my original sketches of him has him turning into a big smoked up cube after ingesting a 17 million pound marijuana cube. I'll have to dig it up.
I do think this is more or less his "default" colour/shape. He's pretty big compared to other critters usually. And can be condensed down to a big lumpy triangle.

I have been struggling to settle on a name, but I actually quite like Kelly. It might stick.

I give you all three guesses as to which dragon I spent my childhood drawing!