From Zelda Legends Wiki
Sculptor at the Nintendo Gallery, near Forest Haven. When Link brings him a good color pictograph, this man takes one day to sculpt him a figurine. The picture must be clear, almost the full character must be in the picture, and it must be a color picture. Some character's can't be taken by the pictograph, so they are at hand by other pictograph/character.
The Legendary Pictographs can be bought by the pictographer in Windfall Island. There are also some pictures that can be taken at one moment, so Link should take a picture of a boss battle when he encounters one. For example, The picture of Cyclos is available only at the battle. The picture of Zephos will come with Cyclos when you give it to Carlov.
All the characters and enemies can be get into the gallery, but it's sometimes tricky.