Poseidon commanding a vast stormy ocean whirlpool

A panoramic view from above, onto a whirlpool. Poseidon towers over the ocean, raising his hand with his trident. The whirlpool, funnel, vortex, draws in ancient galleys and triremes, and at the edge of the funnel, engulfs the sea. On the horizon, an ancient city, about to be engulfed by a wave. Style: hyperrealism, photorealism, cinematic, like an epic fantasy film poster. Palette: Storm, tempest, thunderstorms, lightning, and dark blue, violet. The sky, gloomy, with low clouds through, glowing with an ominous blue light. A stormy blue sky. A storm.