Fresco drawings in the Ananta Samakhom Throne Hall were accomplished by Galileo Chini and Carlo Riguli, who were the royal artists serving King Rama V.
There are paintings on every ceiling and wall of the dome depicting the history of the Chakri Dynasty. The northern dome exhibits the picture of King Rama I leading his armies back to Thailand after defeating the Khmer and later crowned as the first king of the Chakri dynasty. The eastern dome shows the contribution of King Rama II and King Rama III to arts by ordering constructions of the royal temples. The southern dome displays King Rama V's abolition of slavery. Pictures of King Rama IV (King Mongkut) surrounded by priests of various faiths are shown on the western dome, depicting the king's advocacy of all religions. Mural paintings in the middle hall narrate the royal duties of King Rama V and King Rama VI. Other parts of the hall are decorated with King Rama V's and King Rama VI's monograms, including a variety of royal emblems such as the Garuda emblem. On the balcony of the middle hall, art nouveau paintings are decorated on the walls with pictures of European women holding flower garlands.