Hope you enjoy the shrewd overseer!
This model comes from the Corrupted Cybermech kickstarter project:
https://www.kickstarter.com/projects/dorkfactory/corruptedcybermechs
The overseer is an Attendant -- the builders, maintainers and devoted worshippers of the colossal corrupted cybermechs.
Check out the kickstarter page for more lore!