Recommended parameters:
LoRA weight: 0.6-0.8
Sampling method: Euler a or DPM++ 2M Karras or SDE
Sampling steps: 20-40
CFG Scale: 4-11
Upscaler: depend on model that you use
UPDATE
I did V2 (2 versions with deferent training parameters) based on new dataset but i have no option to test it, so i will be grateful if someone can test it and send a results:
LINK