Poseidon-inspired character from Greek mythology as a One Piece character, featuring a symmetrical and detailed full body design with cinematic lighting and high contrast; envisioned for ArtStation as a character concept art in 8K resolution, set against a vibrant water background with a hint of mythical undersea kingdom ambiance, maintaining a blend of regal and adventurous aesthetic, capturing the majestic and fierce essence of the sea god with trident in hand, surrounded by oceanic elements such as waves and marine creatures.