Refine and detail for SD1.5, SDXL, and PONY.
Best model blends [base] + [refiner]:

• Pony realistic (semi-realistic) + realistic

• Cartoon/Anime + Pony realistic (semi-realistic)

• Realistic + Photorealistic/dedicated extreme detail

You can blend model architecture, i.e., SD1.5 + PONY; I suggest you turn the denoise up in the highres fix to smooth out artifacts this tends to produce. If you do this, the VAE will not match, and the preview image will look burned. You may need to add a new load VAE node and pipe it into the corresponding 'to basic pipe' node.

Posting images is appreciated. Reach out if you need help troubleshooting.