The good Departure on the Buddha from Kapilavastu. A royal figure in a very chariot drives forth from a metropolis gate, having a horse in entrance. The scene is analogous to your scene of Buddha's departure from Kapilavastu around the East Gateway, but in that situation there isn't a chariot, https://javatourbylocals.com/Blog/Discover-the-Rich-History-of-Borobudur-Temple-A-Journey-Through-Time/