I am starting to get feedback on my ERD. As was to be expected, what is clear to me is not necessarily clear to others. The great thing are the suggestions that come with the feedback, things like call it "Script" in stead of "Characterset" and there is an ISO code for it. Another improvement was to include a field to say that a specific relation (eg idiom or proverb) are language dependent.
Some of these things are so basic that you tend to forget to include it by making it explicit. All in all it proves important, publishing and publishing again does work.