Maybe larger (640*704) training images are not better than normal (512*512 or 512*640)... At least I tested for hours and outputs are not satifying enough.
Maybe set your resolution around 640*704 before (or without) Hires.fix would help get better results.
Description
Trained with 20 640*704 images on Vivid.
FAQ
Comments (1)
which model are you using to generate those preview image. I used your parameter, none of them had good results