This LORA was trained on Nyakim Gatwech, a model of South Sudanese ancestry. I choose her for her very dark complexion which has better chance of forcing prompts to create dark skin women. Her dataset was trained with the realisticVisionV13 checkpoint.
To test ideal weights, I have generated some images using different checkpoints. The following weights gave better results. With the lower ends being lighter and the higher ends giving more accurate skin tones:
Realistic Vision V1.3: 0.6 - 1.2
Perfect World: 1.2 - 1.6
AnimeIllustDiffusion: 1.6 - 2 (Not very successful)
AbyssOrangeMix3: 1.6 - 2
Beauty 2.5D: 1.8 - 2 (Favorite)
7th Heaven: 1.2 - 1.6
dalcefo painting: 1.4 - 1.8
Protogen v2.2 (Anime): 0.8 - 1.2
Deliberate: 0.6 - 1.2
Liberty: 0.6 - 1
ChilloutMix: 0.8 - 1.2 (Afro-Asian)
Dreamlike Diffusion: 0.4 - 1 (Afro-Asian)
All tests had the following prompt: <lora:Nyakim:X> Nyakim with long straight hair and blue eyes and green eyeshadow makeup, she is wearing a warm pink flower dress, there is yellow diffuse light reflecting on her skin