It looks like generated with Stable Diffusion (since, only SD can make NSFW content), my guess it's version 1.5 (sinse XL deNSFWed pretty much)
IF you plan to use it, you will need a capable videocard (Nvidia 4GB at lowest settings) and web-ui (i suggest automatic1111 web-ui, since it's really basic and user friendly)
And some models. Just look on civit AI, there a plenty of such. (you need checkpoint with version 1.5, if you plan to make it NSFW - there are quite a few models for that as well. And prefer .safetensors format, since it more secure than .ckpt, checkpoint, not LoRA or Lycoris)
And almost all question that you will have (like "What is CFG?", "Denoising?", "Seed?", "I heard controlnet is good for poses... How to use it?") already been answered on reddit for stable diffusion.