Yoshitaka Amano has been the offical concept artist for, I believe, all of the Final Fantasys to date. Even the character designs for the newer games, such as 8, 9, and 10, were based off of his work. If by "they," you mean Squaresoft, than yeah, they generally go by his work since that is what he is hired to do!I was just wondering is Anammo offical? Beacuse it is always what they go by! there have been a lot of Bartz fan artsIn the older games such as FF5, the sprites differ from the orginal drawings because the old-school Nintendos which the games were designed for couldn't support the detailed graphics of Amano's art. However, in the later PSX games, his drawings are very similar to the finished product. The one below from VII is a good example: