Rust Planet

This planet is one I made myself out of some stock textures and a lot of my own. The story of this planet goes as follows:

Long, long ago, this planet was quite young and unadvanced. Interplanetary relations in its galaxy were strained and eventually, a huge space battle began overhead. The debris crashed to the large planet's surface, severely damaging it. Over the years, the metal rusted in the waters and as the creatures evolved, they began to develop organs that could tolerate and even process the high levels of metal in their water supply into armor. Now, the planet is one of the most advanced in the galaxy, with its plated denizens being one of the most technologically advanced within light years.

Thus is the story. I'm into Star Wars, shut up.