Other inspirations

I also looked at animals like the sea turtle who's shell protects it from all predators apart from creature like the great white shark and tiger shark.

Salt water Crocodile skin

Mantis shrimp

I also started looking at animals that have been dead for millions of years and had armour.

 

The Ankylosaurus was one of the most heavily armoured dinosaurs that ever lived, the living tank of the late cretaceous period (68-66 million years ago.    Stegosaurus

Styracosaurus

 

IDEA: One of the best forms of defence is intimidation so with that idea the ankylosaurus's club, stegosaurus's spikes and styracosaurus's horns are a form of offensive Armour.

???What do you think???