This is one of the more-detailed Predator papercraft we've seen so far. This model by stange1337 comes in two versions, the hanging version which is around 59cm tall and the standing tree version of which is around 48cm.
Predator Papercraft

A 36cm tall helmet papercraft of the Yautja species in Predator.
Yautja Predator Helmet Papercraft

A beautifully-detailed Predator's head. Building it would take skills and a lot of hard work as this model has 59 pages of parts.
Predator Head Papercraft

The Bio Mask is one of the main tools used by the Predators. These masks contain a variety of functions which the Predators may require during a hunt. As well as protecting the Predator's head, the mask has a sound amplifier, multiple vision modes, a zoom function, some diagnostic capabilities and a recording system-wiki

Predator Bio Mask Papercraft

The Berserker Predator also known as Mr. Black was one of the 'Super Predators' from the two rival Predator clans hunting on a Game Preserve.
Predators Berserker Helmet Papercraft

Here's a Predator bio mask papercraft by jango.clone. "...contain a variety of functions which the Predators may require during a hunt. As well as protecting the Predator's head, the mask has a sound amplifier, multiple vision modes, a zoom function, some diagnostic capabilities and a recording system. The bio mask may also have a red targeting laser, used by a Predator for accurate plasma caster shots."
Predator Bio Mask Papercraft