Portrait of Zeus, god of thunder, holding a lightning staff, showcasing his powerful and muscular form. Set in a fantasy realm, the artwork is intricate, elegant, and highly detailed, resembling digital paintings found on art platforms. Inspired by the styles of Gaston Bussiere and Alphonse Mucha, the illustration is crisp and sharply focused, emphasizing smooth lines and vivid details. Capture the essence of Zeus in a way that exudes strength and divinity while avoiding any elements of distortion, such as extra limbs or facial inaccuracies. The depiction should be free of distractions like text or artifacts, ensuring a polished, professional appearance.