The head-spider from the movie The Thing.
The pig lizard from the movie Galaxy Quest.
A Jem'Hadar from Star Trek: Deep Space Nine.
A carving I made of Vader in a fake pumpkin.
A pumpkin carving I made of the balrog from The Lord of The Rings.
Alien egg, complete with face hugger.
The character Immortan Joe from Mad Mad: Fury Road.
This is the Chamberlain from The Dark Crystal.
Oogie Boogie from Tim Burton's The Nightmare Before Christmas.