I think I have reached the end of the content, now I will make a few suggestions.
First after passing the beast bow.go back to the doc and make a barter.parq that could use some divine essence in exchange for the book and thus not be spending 200 gold.(A demás either with this grimonio or other more ahead you can use the shelf of the room.)
To improve the poor economy you should add new jobs.
(Here is a suggestion: when Moana has some progress, try to mediate with the coconut monsters to recruit them and travel further, building a dock to interact with them).
Enable wandering so we can find out what the characters are doing on the island.(Besides Moana could trigger events for example those of Merida x Tarzan) Or have encounters with them outside their area.
Or be able to go to the other sides of the island because we only see one side. Other interactions.
Moana could be more free depending on the level of her divinity (like when looking for treasures and if the coconuts have not been recruited, she could go directly to them instead of finishing the game until the time runs out).
And that would be all for the moment.
A if it seems that there is a bug with the map and the caves that remain the options even if you're out of it and the map that appears in dialogues when it is not closed properly.