Create a detailed prompt for generating a seamless marble pattern using a mix of bright and pastel colors, with intricate swirling designs and organic shapes, evoking a sense of whimsy and fantasy, in a curved and wavy layout, resembling a dreamy, surreal underwater landscape, centered on a 20x20 grid size., --tile

AI Photo

Create a detailed prompt for generating a seamless marble pattern using a mix of bright and pastel colors, with intricate swirling designs and organic shapes, evoking a sense of whimsy and fantasy, in a curved and wavy layout, resembling a dreamy, surreal underwater landscape, centered on a 20x20 grid size., --tile