Nishihara Isao style Lora made for a bounty. Not perfect but has many important features from the artist.
This lora has disfigurement with some models like sweetmix. I think many 2D style base models would be okay.
1.3 gets closer to the exact style but has stronger clothing pollution. I think 1 works good.
Copy of sweetmix's negative prompt, but added lips. Download the embeddings from sweetmix's page if you don't have. This is needed for the style!
94 hand picked pictures on NAI, 2500 steps, x768, 32 Dim 16 Alpha.
Might have been better if there were more pictures but many of the artist's pictures have text covering the picture, too much time to edit for me now.