Neat.
You got tonsa tallent.
Few things I'll say, but it's mainly opinion: Sisyphus's head....Too hairy. Hard to make out what his facial expressions at times.
The story. For the grand effort you put into, make sure it's a perfect story to ya. This one seemed too simple: Push rock, rock fall..push rock again. The hidden moral of never giving up is cool but a better story is required for your tallent.
The voices: They were okay-ish, but over-done. Coulda cut down a bit on it.
Music was great...Makes me curious if it's the same artist Phillips uses.
This is all opinion, whatever. Lookin' forward to your next submission.