Authoring, ie portrayed characters and their surroundings do not belong to any product (anime, movie, game), and is entirely an invention of the artist. long hair:
Length is shorter than shoulder length, but no longer than the knee. single:
Images depicting only one character.
No one else should be visible in the picture. tall image:
An image that has aspect ratio of less than 1:1 (height is bigger than width).
This tag is automatically added to images. blush:
Pink or scarlet cheeks. light erotic:
Images with girls wearing lewd clothes, swimsuits, having visible underwear (or lack thereof while wearing outer clothing) or (and) shown in suggestive poses.
Body parts such as genitals and female nipples are not directly depicted. zettai ryouiki:
"Zettai Ryouiki" ("Absolute Territory" in English) describes the area of uncovered thigh between the skirt and the stockings. The presence of zettai ryouiki requires socks that go above the knees. The golden ratio for the ultimate zettai ryouiki is 4:1:2.5 (length of skirt : zettai ryouiki : length of socks above knee) and the acceptable margin for error is ±25％.