"Create a dark-themed artwork featuring a skeleton lich who commands dragons. The lich should have an aura of power and malevolence, with ancient, tattered robes and glowing eyes. Behind the lich, a menacing dragon should be visible, exuding a sense of danger and loyalty to its master. The background should be dark and foreboding, with shadows, eerie lighting, and possibly elements like crumbling ruins or a stormy sky. Use a color palette dominated by dark blues, purples, and blacks, with accents of glowing green or red to highlight the lich's magical powers and the dragon's fiery presence."