Aliens: Study for Alien Queen's head and hands concept art by CT Thorne references Poltergeist 23 sketch for Poltergeist 2, (1985) by HR Giger?

Leading from 

Aliens: From Landscape (work 385)(1978) by HR Giger for Alien via References Poltergeist 23 sketch (1985) by HR Giger to Study for alien Queens head and hands concept art by CT Thorne

a)  Study for Alien Queen's head and hands concept art by CT Thorne

b) Poltergeist 23 sketch for Poltergeist 2, (1985) by HR Giger

c) A chest of a corpse the front of the alien queen’s head.

d) Reverend B’s corpse becomes the crest of the alien queen’s  carapace

d.i) Upper part of corpse and comparison

d.ii) Lower part of corpse and comparison 

e) aA corpse that becomes the alien queen’s hand.

g) A corpse’s limb becomes a thumb like 

h) And upper torso of a corpse becomes the upper part of the hand 

i) A corpse’s limb that becomes a thumb like digit 

j) Giger’s signature that becomes fingers 

k) Area referenced outlined in red