I agree that you need to cut one “moment” from the first sentence and would also suggest you cut or change one of the realized/realization/realized from the first, second and fourth lines.

I would try not to repeat “moment” in the first sentence – maybe . . . would be the one in which I realized I was dead. And you could pretty easily change the second sentence to eliminate the passive: One realization destroyed my entire world. In the third sentence, you might consider replacing “and” with a comma (. . . the end of my Soul, the end of everything I had ever believed in.) In the last sentence, you could cut “which had been” and just say my beliefs, once reliant upon faith alone.

I like the fact that seeing the world as a womb creates a metaphor in which an afterlife is actually a life, rather than a kind of eternal existence. (Although I assume that you don’t mean your story’s afterlife to end with an afterdeath . . . ?)

The second one will remain the second paragraph instead of the first.

Very descriptive imagery.

I’d end the last sentence with…were about to be strengthened, I may not have been so melodramatic.

Great job…I’m eager for more!