I think the saved outfits slots could use an explicit save / load feature unless I'm missing something. Currently it seems like you click on a saved outfit, for example 2 and it loads 2. Any changes you make are automatically saved to slot 2.
The issue with this approach is that I can't load slot 1, then save it to slot 2 to make just some minor adjustments. I have to manually set everything. At least for me, most of the time I want to copy over hair, eyes, etc from a slot I've already set up.
Edit: Maybe just a copy to button?
Edit: Otherwise, looks really good. I can't comment on the scenes so far since I'm not personally into the whole zombies with chunks missing but regardless, the game-play was enjoyable enough and the customization aspect is really neat.