Talk:Lily/@comment-25648422-20171111053333/@comment-53539-20171111093929

Other the same artist and hair-eye colours, they have nothing in common.

KEI suffers from "6 face syndrome" and there are about a dozen Luka, Miku and Rin clones in his work... All that changes is the attire, he has about 4 faces and his hair styles are very formulaic. The more you look at his work, the more it stands out as a notable thing. =_='

http://tvtropes.org/pmwiki/pmwiki.php/Main/OnlySixFaces

Its pretty common, so isn't so unique as a lot of artists do this due to style, formulas, etc. In manga, pretty much few artists like One Piece's Oda go out of their way to make everyone unique (with some strange results in his case). Akira Toriyama is someone else who suffers from this, in his work there are a number of Bulma's, Go-han's, etc.

A lot of it is just done to make life easier to art the art, formulaic examples especially as formulas in art and media always allow you to focus on other aspects better rather then worry about how unique the girl or guy is you just drew... Like the pose, set up of the scene, background, storyline, etc. A lot of comics, western or otherwise, animation, etc are like this...