“The smell of death.”
No. Just, no. Stop using this cliche. It’s utterly devoid of narrative value—in fact, it has negative value; it deducts from your story, and it trashes your credibility as a writer.
What does death smell like? Like rotting meat? Say that. Like infection? Putrescence? Describe it using a specific we can imagine. Maybe it smells sickly sweet or cloying? Or could it be acrid? Like sulfur? Poisonous? “Like death” can mean a bazillion different things, but at the same time means absolutely nothing.
But when it appears in your writing it smells like one thing: Shitty writing.
Never use this cliche. Ever. EVER.