There is actually a 'Main Menu' button during character creation, in the top left, above the character portraits.
The Rain scroll would indeed have saved the ship.
The cursor changes to a yellow/orange rather than white for owned objects, though the differences could be emphasized a little more.
There should be more descriptions / map markers added, for when you've reached certain areas or an NPC mentions a location, etc. There are currently sign posts around, as well.
The 'end character turn' key for combat is Enter.
