"Mech," the pop culture term for giant robots, derives from the Greek word mēkhanḗ, the crane used in Ancient Greek theater to hoist the actors playing gods into the air.
Besides revitalizing the romance of Hades and Persephone with a sleek, transhuman, and very genderqueer cyberpunk setting, you've also brought the mecha genre back to its cultural/lingual roots.
Apò mēkhanês theós. The god from the machine. Machine that are gods. Demigod pilots in the god-machines. God-machines in the demigod pilots.
In short, bravo, and can't wait for the sequel!