digital art, beautiful, fantasy, Cthulhu made out of fire and darkness, with its monstrous form composed of swirling flames and shadowy tendrils, eyes glowing like molten lava, tentacles flickering with embers, dark and scaly skin interspersed with fiery cracks, wings emitting an eerie, fiery glow, surrounded by an aura of smoldering heat and inky darkness, casting an intense and mesmerizing light, looming ominously in a nightmarish landscape.