Tried out the demo. Not a bad start. My main criticism is that there wasn't any expansion so we could get a sense of how those scenes would play out. No enemies either, that I could tell.
It functioned well enough. Biggest gripe is how the picture from "get a picture" button only clears when you click on the control panel. I would rather see that being a constant, rather than a toggle. Especially since you could still click on the map behind it to make the Salvor move. Only other bug from there was that if you clicked "reload demo", you'd retain everything from your previous run. So you could unlock those doors immediately.
On the note of "safe food", I think it'd be worth adding fish that cause her to expand between missions, which can lead to more complications if you're not careful.