Portrait of Zeus, the god of thunder, holding a lightning staff, exuding strength with his muscular build, rendered in a fantasy style with intricate, elegant details akin to digital paintings by Gaston Bussiere and Alphonse Mucha. The artwork should capture the essence of concept art with a smooth, sharp focus. Envision Zeus in an ethereal setting, surrounded by swirling clouds and flickers of lightning, emphasizing his divine authority. The image should be captivating and powerful, yet avoid technical flaws such as blurry images, incorrect anatomy, or visual distractions like watermarks or distortions. This portrait should evoke awe and wonder, focusing on presenting a majestic and commanding presence that stays true to the mythical figure’s grandeur.