I've been having immense fun with SD in the past few days, but I think you're right. Prompt "engineering" is educated guesses plus experience, a good way to get

I've been having immense fun with SD in the past few days, but I think you're right. Prompt "engineering" is educated guesses plus experience, a good way to get a good (txt2img) image seems to be to iterate on prompts until something promising appears then leaving it to churn out 50 similar images with varying parameters. Using the "by {artistname}" string in prompts does seem to produce a lot of stuff which could potentially be copyright violation - it'll even output a signature/initials fairly frequently. In the next year or two I'm sure we'll see some a refined version of something like img2img integrated into Photoshop, maybe Adobe will finally justify their "Cloud" approach with a big stack of GPUs in a data center.