Decent
First of all, I rated this animation based on the quality, not the subject matter. If you can't separate content from quality, you shouldn't be reviewing anything.
This was an entertaining animation, but I can't help but think what could have been. I understand the main purpose is to push buttons and satirize the modern fundamentalist Old Testament texts. However, if you dig back to the various origins and originals of those texts (eg. Sumerian myth, the Nag Hammadi, Jewish Haggadah, etc.), you'll find the actual explanations of the strange parts just as bizarre.
For example, Adam and Eve are often described as having scaly or "horny" skin. Their skin also glowed. When God created Adam, he used various colors of dust, including green "for the pale green skin". The talking snake is often described as a literal bi-pedal lizard man. When Adam and Eve hide from God, he is described as physically walking around looking for them, despite supposedly being omnipotent and incorporeal. When Adam and Eve eat the fruit and their minds open, it is said that they look upon God and see that he is a "beastly form". And so on.
You could make a really outrageously bizarre animation if you dug into the origins of modern faith.