Activate each lora with the character's name (e.g. if you load the willow lora, use "willow" in your prompt).
I've used AbyssOrangeMix3 with very good results: other models should work pretty well, even photorealistic ones (at something like 0.3-0.4 strength).
Best strength for AOM3 seems to be anywhere between 0.50 and 0.70 (0.60 gives consistently good results, but you may need to play around depending on the seed). Go lower to get some interesting takes on the characters.
Hands should be okay, but the eyes are almost always slightly imperfect: you can ignore them (they usually look fine enough) or fire up GIMP to fix them if you're an autist like me.
The following prompts work pretty well:
Positive prompt: masterpiece, hires, ultra-detailed, beautiful digital illustration, 1girl, cute, beautiful, /character name/, /everything else/
Negative prompt: nsfw, (worst quality, low quality:1.3), (depth of field, blurry:1.2), (greyscale, monochrome:1.1), 3D face, nose, cropped, lowres, text, jpeg artifacts, signature, watermark, username, blurry, artist name, trademark, watermark, title, (tan, child, infant, toddlers, chibi, sd character:1.1), multiple view, reference sheet, (multiple characters)
Move the nsfw tag from the negative to the positive prompt if that's what you want.
Whether you can mix this with other loras is an utter crapshoot, but when it works, it works great. Try at your own risk.
