Skeleton King of the Underworld, wearing elaborately designed Nordic armor, an intricate and elegant digital illustration. The scene is hyper-realistic and hyper-detailed with a palette of royal yellow and ultramarine blue. Inspired by the styles of Artgerm, WLOP, Greg Rutkowski, and BROM, the illustration captures the regal and ominous aura of the Skeleton King. The armor intricately wraps around the skeletal figure, adorned with Nordic patterns, while the background portrays a scenic and ethereal landscape. Despite the dark theme, the illustration maintains a sense of majesty and elegance.