Use whichever version you think is better, or just use the newest one. These are made to be style models, so I'm not sure how nicely they'll work with artist tags or LORAs.

3-6 cfg, Euler a

20-30 steps

Probably any normal SDXL resolution, I use 832x1152

Positive+: incredibly absurdres,

Negative: comic, panels, watermark, (worst quality, bad anatomy,:1.15), simple background,