Struck with the urge to draw a steampunk tank by this[link]
This little hunk of metal features 2 seats for a commander and a driver
unfortunately for the commander he has to do everything other than driving! he has to communicate on the radio, dish out orders to his driver, aim, reload and shoot the cannon, and poke his head out everynow and then to scout for targets.
almost fisheyed this drawing, experimenting with vanishing points (there were grid lines before i erased them
all done with a single pencil and a sheet of paper i quickly grabbed from my printer/fax/copymachine/scanner tower of technological horror