This was for a monster design contest, the idea was that it must be a prehispanic Inca god, actually the god of the dead and mining. I searched a lot of information of the god and he was represented with underground materials, that's why he has embedded minerals, such as Jade.
Also the idea of the monster was that he was carring unafortunate souls in his belly. Finally, his hips seem to be dislocated, but this is because he prefear to creep instead walking.