I'll reply in english if that makes it easier.
The map looks and feels really nice to explore. You could add to that by placing around ambiental puzzles that open up more places to explore once you solve them.
You could tell a story by placing npcs, signs, notes, whatever you feel like, but I think taking the approach of environmental storytelling could add a lot to the already nice-looking map, giving it more meaning.
If you're going to update it in the future I'll be looking forward to it!

















