The maker of this piece, Dave Johnson, says it is his first automaton. I've got to say...this is someone with some mechanical aptitude! Note the worm gear and ratchet mechanisms: not the sort of thing one typically sees the first time around. I especially like the way the piece cycles and the great use of secondary motion created by free-swinging parts -- a great touch that adds a lot of life to the piece.
From the YouTube Description:
Since these crank-operated automata inherently cycle through their action, I liked the idea of a task that's never finished, like Sisyphus and his stone. But I didn't want it to be purely grim, so I chose Sisyphus as a young man, in a more pastoral and relaxing posture (perhaps after a picnic), trying to swat a pesky fly. And always missing.
The video of Little Man automaton is generous in showing the details of the mechanism. Dave Johnson also has a nice set of still photos (including sketches) of the piece posted on flickr.