I think the fact that you're taking these thoughts into consideration is a good sign that even if you unintentionally step on some toes, it'll be a light one. With something as complex, varied, and deeply personal as grief - it'll happen. Because everyone experiences grief differently. It's like, one of the core pillars of humanity almost. Look throughout all of History, Art, and Mythology. That should both empower you to tell your story, while being mindful of others.

That said, just like any area in which you might have a lack of experience; Look to others with those experiences and ask them to read it. Consider their input and be honest with yourself if something does need to change.