
This gorgeous ceiling shelters the giant Maitreya Buddha statue in Cave 130. A coiled dragon is at the center of the ceiling, presented against a bright green background and surrounded by a ring of auspicious clouds. Four dragons are sculpted in relief in the four corners of the surrounding square panel, and on each of the north, south, and east sides are a series of intricate border patterns. These consist of beaded, floral, key, and honeysuckle patterns, and are followed by colorful medallions in a repeated pattern that occupies the remaining space on the three slopes of the ceiling.
For more details, go to the Encyclopedia of Buddhist Arts: Caves M-Mo, page 947.