The Alien head is based on Alien: Covenant and made of polystyrene, modelling dough and cardboard. The inner jaw is made of cardboard. The base is made of polystyrene. It is covered by the modeling dough that dries on open air. All the bones and tendons are made of the modelling dough too. The texture is engraved into the dough.
The teeth are made both of paper and plastic vampire teeth.
The most difficult part for me was to cut out, shape and sand down the head so it is symmetrical.
The coloring is based on the look of the Sideshow/Coolprops Alien: Covenant head.
The head is 15" long (37,5 cm) and 7"(14,5 cm) high.
As always, the last picture show the building process.