Check here https://easydiffusion.github.io/
Old models still works with my GTX 970 from 2016, but I can't run SDXL on it, with Stuff like Dreamshaper 8, I can generate an image in less than one minute. I plan to change PC soon (may-be for the January sales), and will take a bigger GPU to run SDXL. (That said I am affraid that in a couple of years, model will be even bigger and will need these Multi-GPU dedicated rack which are used for example in CT scanner)
But at the moment if your PC has a gaiming GPU, no need to pay credit for an online service, you already paid for a PC :)
I picked up a 4090 a few months ago specifically for stable diffusion. The generation times are insane. To compare I used a 3060 mobile and a 7900xt.
AMD compatibility is very bad right now with ai. Progress is being made but it's slow. If you're checking back in a year or so, and it's been fixed, I would honestly pick up a second hand 7900xtx and it would blow your 970 out of the water at a much better price point than my 4090.
Here's the Fooocus home page, with pretty much all of the instructions to get started. If you're on Windows, you need a few spare gigabytes of disk space. My PC barely met the system requirements, so it was kinda slow but tolerable.
Cute turtles :)
It looks very realistic! Would you consider cross-posting it to !aiphotography@lemmings.world? That community is still new and could use some nice AI photos.
Oh yeah, reminds me of this video: "I'm a cute turtle. Just let me rest in peace. ...Why are you messing with me. ...You're seriously fucking with me? FEAR ME, PUNY MAMMAL. I AM A FUCKING REPTILE. ...Yeah you just stay back where you belong."