An oil painting of a vibrant, ethereal rainbow cascading through soft, billowing clouds over a calm ocean. The clouds are painted in hues of gold, pink, and purple, reflecting the warm light of the setting sun. The rainbow's colors blend seamlessly into the sky, casting a magical glow. Below, the tranquil ocean mirrors the sky's colors in gentle ripples, creating a sense of serenity and wonder. The painting captures the beauty and tranquility of nature, with rich brushstrokes that enhance the dreamy, luminous atmosphere."