Elfi from Kuro no Shoukanshi / Black Summoner
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:
Two different outfits similar to the show:
purple dress, frills, long hair, blonde hair, black choker, green eyes, headdress, elf ears, apron, white thighhighs,
light blue dress, long dress, long hair, blonde hair, black choker, green eyes, straw hat, elf ears, bare shoulders,
SD 1.5:
A LoRA weight of 0.7 works great, though you can adjust the strength as you prefer.
Prompts I usually used:
Two different outfits similar to the show:
purple dress, frills, long hair, blonde hair, black choker, green eyes, headdress, elf ears, apron, white thighhighs
light blue dress, long dress, long hair, blonde hair, black choker, green eyes, straw hat, elf ears, bare shoulders