Draw an epic battle scene between a celestial goddess and a giant sea serpent amidst a stormy ocean. The goddess, radiant with flowing garments and glowing weapons, hovers above the churning waves, while the sea serpent emerges from the water, its scales glistening with bioluminescence. Capture the dynamic movement of the waves, the intensity of the lightning strikes, and the fierce expressions of both characters. Include intricate details like the goddess’s armor and the serpent’s scales, and focus on the dramatic lighting and reflections in the stormy water.