@Marijana @Alessandro @ivan @noemi @nadia @alberto and anybody else who was following, thanks for the great suggestions.
After some fun and arduous work, we now have Japanese, Portuguese and many thanks for @Marijana Serbo-Croatian !! 
(please advise me if there is a more correct way to call the language)
Each language version is a now separate topic under the main page, because I could not yet figure out how to create sub-topics under a main topic. More versions are coming!
Edit: Now the newest language in the Polyglot Pot of Libro Werde is: Bicol!