[2326] What Remains

Chapter 1 of my post apocalypse novel. I've been writing this for a year now. I've polished this to the point I don't know what is left to do.

Premise

A character-driven post-apocalyptic novel about two brothers whose opposing responses to a zombie apocalypse place them on opposite sides of a future conflict.

I'm looking for any advice. One line of your opinion with be tremendously valuable to me.

If you prefer questions:

Does the opening work?

Is the ending tense/scary?

How do you feel about the characters?

Example: if you're rooting for the zombie to eat Riley at the end then I've messed up.

Link to Chapter 1

https://docs.google.com/document/d/1GGWd1aY2qzFX4F0cPL0iYbsMEcImv3TM\_BCY8zhTHsk/edit?usp=drivesdk

Critique

[2369] Before The Reputation - A Space Bounty Hunter Short Story

https://www.reddit.com/r/DestructiveReaders/s/0x1DrgGQOW