Delville's influence on Giger

leading from

 Alien:Afterthoughts 
and
Jean Delville

  1."The Zig Zag Devil"

2. Delville's influence on Giger's Facehugger

3. Delville's "Treasures of Satan"
 
4. "Treasures of Satan"'s transformation into "Alien Monster IV"

5. for the continuation of where this story is going, also see:
"Alien Monster IV" to James Cameron's Alien Queen