Pretty Cool
Good stuff! You can definetely tell you've been inspired by Adam Phillips (who hasn't?), especially in the character design and in the scene where Sisyphus runs away from the rock (totally Yuyu). The final outcome is pretty good, except the sound: the grunts are somewhat awkward. Also you seem to have done part of the movie in "twos" so it looks a bit choppy sometimes (when he breathes). Otherwise, awesome!