Great progress! I really like the theme.
If everything will be top down view, I wonder if 2.5D walls might look odd?
When I started making this game I didn't really know whether to make a top-down game or 2.5D (isometric) one, heck I'd actually want to try making both of those, but thinking about it for some time, it might be better to make a top-down style game for this jam and I can always revisit this idea and make a 2.5D game, or even bump it up to a 3D one, who knows. But for now I'm making a top-down game.