The Dragon Mural in the Sun Warrior Temple and the Nine Dragon Wall
The mural you see in the Sun Warrior temple when Aang and Zuko climb the stairs, is based on the Nine Dragon Wall.
Compare the placement of the dragons, the placement of the flaming pearl vs the circles of flames and the way the waves and flames are stylized.
This similarity leads to an interesting question: Does the mural also depict nine dragons? Are we only shown one small piece of the whole mural?
Image source: One, two