It is a simple Y shape chain piercing, training material don´t contain collarYou 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 <img src="https://image.civitai.com/xG1nkqKTMzGDvpLrqFT7WA/6aacbe8a-cb92-4890-9539-22af3f62395c/width=525/6aacbe8a-cb92-4890-9539-22af3f62395c.jpeg" /><img src="https://image.civitai.com/xG1nkqKTMzGDvpLrqFT7WA/7d2b8f59-261d-4a94-ab6f-aaa3896abbbb/width=525/7d2b8f59-261d-4a94-ab6f-aaa3896abbbb.jpeg" />The positive prompts are chainAnd 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 time64/8.6e-6 too overfitting, high chance to generate32/8e-6 some overfitting, high chance to generate28/7e-6 (v1.0) less overfitting, relative high chance to generate24/7e-6 much less overfitting, nearly impossible to generate, only chaos of mutiple chains24/6e-6 much less overfitting, nearly impossible to generate24/5e-6 much less overfitting, nearly impossible to generate16/8.6e-6 impossible to generatev2 remove all gold chains, only iron chains remain, and the tag "linked piercing" is removed30/7.5e-6 under-saturated30/7.2e-6 (v2.0) replace under-saturated materials

Y shape chain piercing

add 10 regularization, remove 10 training materials (from 40 to 30)

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