a beautiful mermaid looking at the sunken city of Atlantis under water, rays of sunlight, stunning undersea intricate detailed grand architecture in the style of Joe Fenton, art style by Greg Rutkowski and Mohrbacher, graceful mermaid style by Tom Whalen, deep underwater scene, dark and moody, faint volumetric god rays, grim crushing atmosphere, trending on artstation, masterpiece, claustrophobic