A full-body view of a majestic, serpentine underwater creature, with iridescent aquamarine scales that shimmer in the soft, diffused light of the ocean, set against a plain white background, in a medieval, mythical art style, with intricate, hand-drawn details and textures, wide shot, with the creature's body curled around a sunken, ancient castle, with schools of small fish darting through the ruins, and the creature's eyes glowing with a soft, ethereal light, on a plain white background, even lighting