Ok, here's what I got for now:
https://files.catbox.moe/9de95b.zipImage is a quick test I did with a few different models. I'll probably improve on the thing more later, integrating more screenshots of her actual Live2D as some champy suggested would be a good idea since it would make picking up stuff like her eye bags easier which I haven't had an easy time reproducing here. Also I still need to experiment around with different options and stuff to figure out what works best. Training the thing takes pretty much all night on my GPU though if I use a google colab sheet it goes a bit faster, so I can use that thing for testing stuff at least (not sure if using the local script will produce better results for the final thing or if I'm better off just sticking to the colab for everything)
I included both a 128dim and resized 32dim version since I saw a suggestion to train at 128 and resize after but I'm not sure whether it actually improves quality or not so you could try either one and see which gets better results. (32dim version was used for test images)
Prompt for test: <lora:kiki-test-resized:1>, (kiki), (extremely detailed CG unity 8k wallpaper), (best quality), (ultra-detailed), (best illustration), (best shadow), bottomless, black t shirt, blush, smile, clover hair ornament, blue eyes, very long hair, black hair, flat chest, bare shoulder
Negative prompt: lowres, bad anatomy, bad hands, mutated hand, text, error, missing fingers, cropped, worst quality, low quality, normal quality, jpeg artifacts, signature, watermark, username, blurry, artist name, out of focus, (wedding ring:1.1), 2girls, 3girls, (((multiple views))), (((bad proportions))), (((multiple legs))), (((multiple arms))), (monotone). 3D. low quality lowres multiple breasts, bad fingers, (nsfw)
Steps: 32, Sampler: DPM++ 2M Karras, CFG scale: 11, Seed: 3282009115, Size: 448x620, Model hash: 89d59c3dde, Model: animefinal-full-pruned, Clip skip: 2, ENSD: 31337
Bonus lewd version: https://litter.catbox.moe/7r9jed.png 