Otaku USA Magazine
Attack on Titan and More Anime Openings Recreated in Pencil

For just one of many examples of fan dedication, look no further than the work of animesekai1984, who has been laboriously recreating anime opening and ending sequences in pencil. From Attack on Titan to Sword Art Online, One Piece, and beyond, the end results are impressively detailed and accurate.

As one would expect, each of the full works features hundreds of illustrations. You can see a nice little collection of them, starting with Attack on Titan, below.

Via NicoTubeAnime, Crunchyroll