Prompt:
Gigantic, humanoid mechas, with intricately etched, metallic armor plating, adorned with radiant, pulsing neon accents, fueled by blazing, energy cores, clash in a frenzied, underwater melee, their massive, mechanical limbs tearing through the dark, mysterious ocean depths. Iridescent bubbles and turbulent waves erupt from their movements, as if the water itself is being rent asunder, revealing the ghostly outlines of ancient, lost cities. The seafloor, littered with shattered, coral reefs overgrown with glowing, bioluminescent flora, and the rusting, skeletal hulls of centuries-old shipwrecks, adds to the drama and chaos of the scene. Inspired by Syd Mead's futuristic, high-tech aesthetic, with its sleek, aerodynamic lines, H.R. Giger's dark, industrial biomechanics, with its nightmarish, organic undertones, and Takashi Murakami's dynamic, kinetic energy, with its vibrant, superflat color palette, the mechas' duel is a mesmerizing, larger-than-life spectacle, with a cinematic, blockbuster flair, showcasing their intricate, mechanical armor and devastating, high-tech weaponry.