Are these pictures of the book called “Sora no Iro” or “Dragon Sword and Wind Child” of Saya and Chihaya?
The first three icons depict Saya and Chihaya from the American, Chinese, and Japanese cover art of Dragon Sword and Wind Child (Sorairo Magatama).
You can see all the cover art under the Books section.
These pictures are so pretty! Are most of these pictures from the book?
Yes, they are all either book cover art or illustrations.