“And all the angels stood round about the throne, and about the elders and the four beasts, and fell before the throne on their faces, and worshipped God,”
King James Version (KJV)
7:11 And all the angels stood - In waiting. Round about the throne, and the elders and the four living creatures - That is, the living creatures, next the throne; the elders, round these; and the angels, round them both. And they fell on their faces - So do the elders, once only, #Rev 11:16|. The heavenly ceremonial has its fixed order and measure.
Re 7:11,12 And all the angels . . . and the elders and the four beasts. In Re 5:11-14 the elders, four living creatures, the angels about the throne, and every creature join in the praises. Here again all are named, and the angels worship and join in praising God for the blessed scene they have just beheld.