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They are generated images... I use Midjourney AI to generate them, or which I pay $60 per month for. And, you are not required to credit them, they give you a commercial licence.

How would someone know that, without reading your comment here? Even if not required, it would improve the quality of your post to not take something like this for granted.

In addition, I can't imagine Midjourney AI would stop you from giving them credit, as others might be impressed enough with the results you are illustrating to want to get a license themselves!

Maybe I'll write a post about where I source images from or provide a note. For the most part, I'm not concerned about people making assumptions about where I source my images. It has come up before, albeit more from a curiosity standpoint of where I get my cool images. Sometimes it takes me 10-20 minutes of constant prompt rewriting and generation to get a good image for my articles.

Terms of service for anyone interested:

https://midjourney.gitbook.io/docs/terms-of-service