"A wyvern with two hind legs and no front limbs. The wings function as the only forelimbs. Obsidian black scales across the entire body with deep violet and amethyst iridescence where light catches the scales. The wing membranes are large, long, and semi-translucent purple-black with dark violet veining visible through the membrane like cracks in glass. The wingspan is massive and disproportionately large relative to the body. The torso is elongated with significant length between the base of the neck and the hips. Long whip-like tail ending in blade-like spines. Continuous ridge of black dorsal spines from skull to tail tip. Long angular skull with overlapping armored plates, swept back asymmetrical blackened bone horns, pale violet slit-pupil eyes. Dark misty atmosphere, near-black foggy background. Small human silhouette for scale. Detailed digital painting, realistic creature anatomy, semi-painterly rendering, high detail on scale texture and wing membranes."