a) Early Alien storyboard showing Kane's body shooting into space (1978) by Ridley Scott
c) Main areas to compare shows Nigel Kneale's head with the radio headset and its rough equivalents here
Nigel's face would generally become the circular airlock entrance
d) Perhaps the eyes becomes the astronaut visors or do they becomes the squares on their chests.
His nose becomes the downwards tapering blue green area between the two astronauts
The left ear phone becomes what might be a receiver dish
e) The right ear phone being held by a hand becomes Kane's body as it shoots out into space.
The antenna perhaps becomes the rim on the end of the wall extending upwards from behind Kane's body, and it has been continued downwards as well
Perhaps the wrist becomes the part of the ship in the distance with he red viewing window