Looks and works very well indeed, great job Roger !
For added realism, a minor concern could be the direction of rotation.
It appears as the wind hits the wings from the rear, which shouldn´t be possible on a windmill of this type.
(unless your camera speed tricks my perception)
I have a standalone hammer-motor here as well...
It nicely doubles as a well functioning dynamo, when driven from a steam engine, since it is the exact same unit used as the dynamo on the Tornado turbine.