It's fairly easy to do, and If you have a Gaming PC you can do it on your own machine for free without an Internet connection using Fooocus. Fooocus can be downloaded here, system requirements are on the page (Scroll down the page to get to the download section, don't get scared off by all the github stuff) https://github.com/lllyasviel/Fooocus
Instruction videos on how to use it are on Youtube. While you can start generating pictures without seeing any of it, it really helps to know at least a little of what you are doing.
And a place to get free add-on lora's and other items is here. Yes, you really can generate pictures like that when you learn how to do it. https://civitai.com/
So what are you waiting for?
Creating Pictures with AI
Re: Creating Pictures with AI
And a couple of pictures...