Colorful coral reef and tiny fish in an underwater anime scene

underwater scenery with a large coral reef in various vibrant colors with small fish swimming around it, a sunken fantasy ship in the background, anime a girl with short dark blue hair and a big bun, blue eyes and mechanical pupils in black and white, thin black mechanical lines running across her face, a long black dress with blue ruffles and a long white plaid with dark blue buckles, white stockings with light blue lace, black elegant shoes,