Extremely cool premise, one of those I really wish I'd thought of first.
As the commenters on the blog said, the explicit referral to Mother Earth weakened it because the analogy was already very clear. This brought up all kinds of practical questions that were never answered (in a good way): Is she really dead or just sleeping? Are there more of her kind? Why does she look human?
And, as another blog commenter pointed out, considering earth religions as being homogenous wasnot at all accurate. Especially since they mentioned Buddhism, which I wouldn't expect to have the objections to nudity that some other religions might have.
The end just kind of petered off, I would've liked to see a little more resolution.