Ridley Scott's Alien Monster

Leading from:
The Creature

a) Into The Necronomicon
b) Looking for the Alien's Nucleus
c)  The Sudanese
d) Bolaji Badejo from the Gold Coast
e) The Salamander People
f) The Chestburster
g) The Facehugger 
h) The Egg
i) Paintings that inspired the big Alien
j) Roger Dicken's big alien
k) Creating the Alien
l)  Physicality of the alien creature
m) Human to Spore stage
n)  An intermediary stage
o) The Alien as a folded up box
p) Saliva Story  

Alien creature (source: http://wh.joyreactor.cc/post/681422)