Called the Ladder of Divine Ascent and depicts the process of theosis. The second is this:
Called the Icon of the Resurrection. The people standing by are not Apostles. They are Kings David and Solomon, Abel, Elijah, Moses and +John the Baptist. They represent the Righteous before the time of, or in the case of +John the Forerunner, contemporary with, Christ. This is the icon which depicts the rescue of Adam and Eve, and thus all mankind, from the chains of death. Satan is shown bound himself in chains as a symbol of his defeat.
Yes, those are the ones. I had a memory that one of the six was St. Peter, but if I'm wrong then I'm wrong. Thanks for the correction.