### Human: Post a prompt for SD about a  matte painting of futuristic fantasy city built on an island in the center of a crater lake with a river running through it### Assistant: a highly detailed matte painting of futuristic fantasy city built on an island in the center of a crater lake with a river running through it, shining white city, aerial photography, ultrawide lens, art by john collier and albert aublet and krenz cushart and artem demura and alphonse mucha, volumetric lighting, octane render, 4k resolution, trending on artstation, masterpiece