Hope topaz add "LDSR stable diffusion img2img upscale" model concept look alike

I agree with you.
But from the images posted by OP. It didn’t generate anything new in the image.
It seem that he only use the upscale features come with Stable Diffusion.
The backgroud is upscaled by “Latent Diffusion Super Resolution (LDSR) upscaler” and the human face is upscaled by “GPFGAN”.

I can do similar upscaling using CodeFormer. (Not as detail as LDSR but faster)

Compare:
Left: Origin Middle:CodeFormer Right:Prob-3 Auto

Source Video:
https://youtu.be/jNQXAC9IVRw