Illustration of a mermaid with a mystical look. The mermaid should have long, wavy hair adorned with pearls and seaweed. Her eyes should be large and glowing, exuding a sense of mystery. She wears a crown made of shells and starfish. Her tail should be detailed with iridescent scales that shift colors in shades of blue, green, and purple. The mermaid is posed on a rock, with her tail elegantly curled beside her. The background is completely white, with no additional details, to highlight the mer