Really nice idea, and a bunch of potential with a few issues (things missing rather than broken, so I assume just the kind of things that would be added with more development time). As other people have mentioned, it would be cool to see the actions affect the city and to get more feedback on what's happening - I would picture a more zoomed out view with things like swapping park geo to match the action, etc.
Gameplay wise, it needs some variety besides balancing daily +/-. I know it's aimed at all-comers, including kids, but once you got the daily cash inflow positive the rest took care of itself. It needs either a more complex interaction of the numbers or some added randomness. It was also hard to contextualise the numbers with the theme, so it kind of lost meaning. You could almost make it turn based (1 day = 1 turn) and present some simple graphs as news reports or something to show the daily change from the decisions.
Anyhow, that kind of feedback is more indicative that it's an idea worth exploring than anything else. Nice work