Act as a visionary fantasy artist with expertise in underwater realms, tasked with creating a breathtaking Midjourney portrait. Depict a majestic [MERMAID QUEEN] with flowing [PEARL-ENCASED HAIR] and a regal [SEAWEED CROWN], seated atop an intricate [CORAL THRONE] adorned with glowing bioluminescent details. Surround her with a mystical underwater palace, where schools of iridescent fish swim among towering kelp forests. Her expression should exude wisdom and power, with piercing [AQUAMARINE EYES] that seem to hold the secrets of the ocean. Use a color palette of deep blues, shimmering golds, and ethereal purples to enhance the otherworldly beauty of the scene. The composition should be cinematic, with dramatic lighting filtering through the water to highlight her divine presence.