It's a shock you don't see more steampunk LEGO, really, considering all the gears and cogs available from old Technic sets. This model, by "Morgan19," is called the "Dardenbahst," a mecha with custom-painted golden touches which just gets better the more I look at it. It's far more functional and possible-looking than most. He even made a nice schematic image which you can see at the link below.
The LEGO builder community just keeps getting better. I don't know if I'm just paying more attention lately or what, but we may be entering a renaissance.
The crazy steampunk machine [Brothers-Brick]