Prometheus: Relief in the ampule room references panel from Dark Horse comic's "Alien: Apocalypse - The Destroying Angel" written by Mark Schultz (Published 1999) illustrated by Doug Wheatley, colored by Chris Chuckry

Leading from

Prometheus: Giger-esque relief in the ampule room

and

 Panel from Dark Horse comic's "Alien: Apocalypse - The Destroying Angel" written by Mark Schultz (Published 1999) illustrated by Doug Wheatley, colored by Chris Chuckry

and

“Alien Apocalypse" influence on Prometheus

a.i) Relief in the ampule room (Source: http://www.avpgalaxy.net)

a.ii) Relief in the ampule room (source: Alien: The Weyland-Yutani Report)

b) Panel from Dark Horse comic's "Alien: Apocalypse - The Destroying Angel" written by Mark Schultz (Published 1999) illustrated by Doug Wheatley, colored by Chris Chuckry 

c) Comparable areas although the relief in Prometheus does not contain this thing we refer to as the space jockey sitting in the centre with folded arms

d) The folded leg like forms that are the upper bodies of “Space Jockeys” in the giant relief from the Alien: Apocalypse comic book story, and the Engineers being face-hugged at the bottom of the relief from Prometheus

e) Left folded leg like form that appears to be a “Space Jockey” while in the picture does not have anything specific in its comparable space,  further down see a similar positioned bald headed Engineer character in the process of being face-hugged, based upon early concept art by Giger for Dan O’Bannon‘s Alien.

f) Right folded leg like form that appears to be a “Space Jockey” while in the picture does not have anything specific in its comparable space,  further down see a similar positioned bald headed Enginee r character in a state of being face-hugged, based upon early concept art by Giger for Dan O’Bannon‘s Alien