Alien: Giger's Alien Life Cycle Tableau (1978) references Chesley Bonestell's "Stone Architecture on Mars, Demonstrating Mar's Two-Thirds Less Gravity Than Earths."?

leading from

Chesley Bonestell's "Stone Architecture on Mars, Demonstrating Mar's Two-Thirds Less Gravity Than Earths."

and

Alien: Giger 's Life Cycle Hieroglyphics Tableau

Near colourless version of Chesley Bonestell's 
"STONE ARCHITECTURE ON MARS, DEMONSTRATING MARS' TWO-THIRDS LESS GRAVITY THAN EARTH'S."   
(source: http://www.sothebys.com/…/space-exploration-n09…/lot.25.html)

a) Giger's Alien Life Cyle Tableau, (1st Version before the victim heads were altered) painted 1978 

f.i) Giger's Alien Life Cyle Tableau, (1st Version before the victim heads were altered) painted 1978

b) Loosely comparable details: astronaut explorer from Bonestell's painting and helmet of early astronaut from Giger's earlier version of the Hieroglyphics painting. 

Both with large dark helmet visors, breathing masks and antenna like shape sticking out of the top of the back of the helmet. 

Perhaps ear parts of the helmets as well.