Sierra’s time traveling, dress hating tomboy Pepper Pumpernickel from Pepper's Adventures in Time (known as Twisty History in some early marketing materials), one of their attempts at making an educational game (though the actual educational content is minimal and pretty forced). The Illustrious version was made as a test of how relatively crude, ~30x60 <24 color, sprites (with next nearest scaling to meet minimum size) work as model fuel if I tagged them "pixel art". Surprisingly, there’s actually a few pieces of fanart for her, so I included both.

Base: Pep_pum, red hair, pointy hair, low ponytail, short ponytail, blue eyes,
Native outfit: baseball jersey, number print, short sleeves, asymmetrical clothes, jeans, blue pants, patched knee, sneakers, red footwear
1700s outfit: tricorne, blue headwear, white shirt, button-up shirt, long sleeves, vest, open vest, capri pants, grey pants, sneakers, red footwear
Negative: pixel art (needed for Pony version) pants rolled up (some checkpoints/styles improperly add it to her pants of this outfit)
Technically accurate to source material but you’ll likely want it as a negative: fewer digits
Helps in certain styles: reverse trap (she's supposed to be disguised as a boy in the 1700s outfit, but without it many checkpoints/style LoRAs will see 1girl and make her super feminine)

Changed patched knee to reinforced knee (old tag caused knees to be torn, and the game itself is an inconsistent mess about it). Pony version exhibited a curious behavior in training where it got more and more pixel-art each epoch despite none of the epoch pics prompts mentioning it.