It is a simple Y shape chain piercing, training material don´t contain collar

You might need to set a high weight 0.9 (for v3) and 0.95-1 (for v1 and v2) to get a proper generation, click the showcase imagines to view exmaple prompts. However, the chance of generation a picture like showcase is still low, you may need to generate 10 to get 1.Such as

The positive prompts are chain

And I remove the tags like "nipple piercing","nipple rings", since these tags will pollute the shape of nipples. These tags are not suggested for this model.

I trained 10 models: (network dim/learning rate)

v3 add 10 regularization materials, but remove 10 training materials, to spare some training time

64/8.6e-6 too overfitting, high chance to generate

32/8e-6 some overfitting, high chance to generate

28/7e-6 (v1.0) less overfitting, relative high chance to generate

24/7e-6 much less overfitting, nearly impossible to generate, only chaos of mutiple chains

24/6e-6 much less overfitting, nearly impossible to generate

24/5e-6 much less overfitting, nearly impossible to generate

16/8.6e-6 impossible to generate

v2 remove all gold chains, only iron chains remain, and the tag "linked piercing" is removed

30/7.5e-6 under-saturated

30/7.2e-6 (v2.0) replace under-saturated materials