Sadina from The Rising of the Shield Hero / Tate no Yuusha no Nariagari
Keep in mind that settings may vary slightly between different versions. See below for more details.
When I tested this with different checkpoints and LoRAs, it seemed to work quite well.
Pony:
A LoRA weight of 0.8 works great, though you can adjust the strength as you prefer.
Prompts I usually used:
very long hair, black hair, low tied hair, blue eyes, blue vest, underboob, navel, tattoos, white loincloth, long loincloth, black tattoo sleeves, sarashi, long face,
SD 1.5:
A LoRA weight of 0.7 works great, though you can adjust the strength as you prefer.
Prompts I usually used:
very long hair, black hair, low tied hair, blue eyes, blue and white top, underboob, navel, tattoos, white loincloth, long loincloth