Stephanie - Lego Friends : Girls on a Mission (PONY): v1.0 (illustrious): Stephanie_-_Lego_Friends__Girls_on_a_Mission_illustrious.safetensors

Stephanie from lego friends

If you want to change her clothing without leaving any trace of her default clothes, you'd have better chances if you reduce the lora strength. I recommend up to 0.8-0.7