I heard about someone using Krea here. You can take an image and upscale it using AI. You can also do much more than that, but that was what I was experimenting with this morning.

Here are some images I had previously made with Perchance AI, then today I upscaled them with Krea AI.

I have to say I am very impressed. Perchance will allow you do create just about any image, but the quality was not great. With Krea, the quality can be improved a lot, resulting in some very nice AI imagery.

Here are some before and afters of images made with Perchance, then upscaled with Krea. To truly appreciate the difference, please click each image to view it full screen.

God! It's great! I was impressed by the texture and detail of the skin and of course that you can generate topless

And here is my first attempt to generate just a naked girl
Yes, the difference after enlarging the photo is impressive!