Poseidon, god of the sea, playing a glowing electric guitar. Stormy ocean background with massive waves. Lightning bolts illuminating dark sky. Poseidon with flowing white beard, muscular physique, crown of shells. Wearing shimmering blue-green robes. Wielding a sleek, futuristic electric guitar glowing with ethereal blue light. Water and lightning swirling around him. Standing on a rocky outcrop amid turbulent seas. Photorealistic style with mythological elements. 8K resolution, sharp focus on Poseidon and guitar. Dynamic pose, hair and robes billowing dramatically. Epic, cinematic atmosphere. Blend of ancient mythology and modern rock aesthetics