## an expansive dome ##

A dome looks like a hollow ball that is cut in half. "Expansive" means very large. Alternate translation: "a huge bowl"

## awe-inspiring crystal ##

"awe-inspiring ice" or "crystal that makes people marvel when they look at it"

## stretched out over their heads above ##

"and the expansive dome was spread out above the heads of the creatures" or "and the expansive dome took up a lot of space over the heads of the creatures"

## Beneath the dome ##

"under the dome"

## Each of the living creatures also had a pair to cover themselves—each had a pair to cover his own body ##

"Each of the living creatures also had two other wings, which they used to cover their bodies"