Midjourney AI is the web server that allows users to create a variety of unique images, beautiful images, or CGI (Computer Graphic Images). Those images are created by Artificial Intelligence that uses neural network algorithm. To create an images, users simply describe the worlds or phrase about the image they want, as well as some keywords such as Unreal Engine(Game development Software), aspect ratio, resolution, or width and height. And those describe words in this community called "Prompt", but before putting this prompt users have to type "/image". For example: /imagine the scenery of Cinderella death.
About the Midjourney , Midjourney is an independent research lab exploring new mediums of thought and expanding the imaginative powers of the human species. We are a small self-funded team focused on design, human infrastructure, and AI. We have 11 full-time staff and an incredible set of advisors.
 You all want find out more, it is also available in the Github.

The example image generated by Midjourney AI,