There are 6 paintings in the series, commented by the author.
Danaerys Mother of Dragons
Danaerys wears traditional Heian-period royal clothing and is seated on the Mongolian Steppes, a fitting analogy for the Dothraki Sea, far from Westeros.
Bran Stark and Hodor Journey North
Weirwood lore shares some interesting similarities to Shinto practices, so I drew a shimenawa (prayer rope) around the tree trunk.
Tyrion at the Eyrie
Catelyn Stark, her uncle Brynden Tully, and a dispatch of the Knights of the Vale journey to the Eyrie while transporting their captive, Tyrion Lannister. Tyrion is dressed in the robes of a nobleman.
Jon Snow duels Qhorin Halfhand
The wildlings are dressed like the Ainu, who are the indigenous people of northern Japan. The Ainu are thought to be the descendants of the first inhabitants of the islands, and throughout history they have lived independently in the cold far north, beyond the grasp of the Emperor.
Battle of Trident
This is the iconic duel between Robert Baratheon and Rhaegar Targaryen that preceded the series by seventeen years. Instead of a war hammer, Robert wields a Kanabō, a club-like samurai bludgeoning weapon. His antlered helmet is inspired by the famous helmet of the warlord Honda Tadakatsu.
The Execution of Eddard Stark
Instead of having Ilyn Payne simply execute Ned Stark, an amused Joffrey orders Ned to commit seppuku. Ilyn is on hand to perform the kaishaku, or ritual decapitation to quicken the death. The paper in front of Ned is a death poem, which a samurai would traditionally write before ending his life.