I tried your game yesterday and I really liked it !! I'll be waiting for chapter 2.
Everything was perfect in your game (Just if you had put more pictures, like when you go to the grocery).
I'm not a big fan of zombies and all, but I talked my little brother into trying it, and he managed the game in one try. The only things he said he didn't like are:
-The music which was too repetitive, he said you should put a longer one, (But that didn't bother me, since the game wasn't that long). We both found it fitted the game very well.
-The background image which wasn't cut well: The red background around the picture is ugly, and next time you take things from googlemap, cut it more precisely. (Those are details)
-And of course... Good games are always too short !
I've to add that my little bro' is 12 years old, a big fan of zombies related things, is really picky with everything that has to do with them, and isn't usually interested in VN. Even though the game was in English, he played it, understood your style, and liked it.
So, in fact, we'll be two to wait for a sequel ^^"
Oh ! One more thing: I tried your game too of course, and died lot of time (though sometimes it was only because I wanted to see what would happen. I think you should put harder choices (For the people like my brother), or something like if you decide to pass by the kitchen before going out you'd have a knife or something you'd use later instead of dying. And more good endings, like surviving with your wife, without her, with neighbours and all. (And the true one, which will be in the next chapter...)But once again it's only details, I'd play your other games, even without that.