A soft, dreamy illustration of a mermaid in a sitting or floating pose, with long flowing wavy hair and a shimmering tail. Use a color palette that includes soft white, pastel pink, and lavender purple, matching the reference colors. The mermaid should have gentle facial features, dreamy closed eyes, and her hair cascading gracefully around her. The style should be cute, delicate, and fantasy-like, with a modern, magical vibe.