To make a user click on a pin, i.e., go to a website or account we need them to, it is necessary to help them.
It means to let them find the pin with a search engine by making it attractive to spur them to look at the pin closer and click on it, not swipe it. Hashtags work for Pinterest - do not forget to add them to attract more interested users.
If you promote your brand in the international market, use English for sure. The text language should be the same for all pins and boards of the account. And it is necessary to name them the way users can easily find them: enter keywords in the search bar and analyze what Pinterest recommends.