patchouli knowledge, touhou, 1girl, alternate costume, arms between legs, barefoot, bespectacled, blush, bonnet, book, bow, casual, chibi, crescent, crescent pin, female focus, full body, glasses, greyscale, hair bow, hat, long hair, looking at viewer, mob cap, monochrome, moon, necktie, nightgown, no headwear, pillow, reference sheet, ribbon, sidelocks, simple background, sitting, standing, v arms, walking