These seems to be 4 different bodies each with 2 different heads. Ghoul 1B is the former FF7 Ghoul.
Painter:
Rochie Rochfort / Another
C18 Undead - Ghouls
Ghoul 1A
Ghoul 1B
Ghoul 2A
Ghoul 2B
Ghoul 3A
Ghoul 3B
Ghoul 4A
Ghoul 4B
C18 Ghouls - March 1983 Flyer