a beautiful mermaid looking at the sunken city of Atlantis under water, rays of sunlight, stunning grand architecture in the style of Joe Fenton, fish and sea creatures in background, detailed digital art style by Tom Whalen, 8k octane beautifully detailed render, post-processing, extremely hyperdetailed, intricate, epic composition, grim yet sparkling atmosphere, cinematic lighting + masterpiece, trending on artstation, very detailed, vibrant colors, Art Nouveau, volumetric god rays, deep underwater scene, sharp focus, smooth, dizzy, moody