My attempt at this bounty.

Comments

• To have her wear her mask, remove tags relating to her eyes, face paint, etc., and try adding "mask on face" or "mask" to the positive prompt. Prompting it can be a bit tricky as the dataset contained ~6 examples of her wearing the mask on her face. The training set did include an additional 6 photos of cosplay masks.

• Every image was manually labeled. (Invalid tags were used in training for Pony V6 XL and Animagine XL V3.1.)

• The model was not trained on explicit material.

• Most of the training data contains her core outfit, and may sometimes require a bit of tinkering to change to a novel outfit.

Images

• Common training sizes: 1280x704 (x16), 1344x768 (x13), 832x1152 (x10)

• Signatures were removed from fan art for training.

• x114 images of San

  • x32 screenshots (x2 repeats)

  • x62 fan art

  • x14 cosplay

  • x4 pvc statue

  • x2 yarn/cloth doll

• x6 photos of isolated cosplay masks