Nature: The Isle of the Serpents

Notice that thing on the island, that looks like a target–Oh no. It's an eye! The serpent unfolds to create a long posable creature, and the battle begins!

On one end, Shipwreck survivor, on the other, SERPENT!

The serpent is built with interlocking bricks so that it can be posed and slithered around in different forms.

The build is set on an island, where the serpent has slept for eternity... until a guy came along and started a fire on its back, this awoke it from its sleep and begins the duel.