Very short and choppy sentences that can be turned into fuller sentences. For example:

Sarah is dead. It's been 10 days since Sarah died. I still can't believe she's gone.

My version: It has been ten days since Sarah died. I still cannot believe she is gone.


See how much smoother my version is? Interesting plot, however your grammar needs improvement.

Interesting premise, but you're not doing much with it at the moment. I'd say it's closer to a vignette than a story at the moment. You will have to add more tension and conflict, because at the moment you just have a character's retelling of events the reader hasn't experienced themselves.