I made these with Disco Diffusion. I chose the 73% "partials", the unfinished pictures, and upscaled them for Artstation. Just to show you that these AIs can just be tools for sketching. Here's how to do this:
To begin with Disco Diffusion: https://youtu.be/FA2MNG8D5x0
To watch what it can do: https://youtu.be/6IjTUDp7gOk
How to use it for sketching: https://youtu.be/A0SbvjKw9sI