Easy Photography Portfolio works with Polylang, mostly. You can set the language for each portfolio entry and each portfolio category. With the way that Polylang works, you have to create a separate portfolio entry for each translation, which means that you have to add and remove photos multiple times, for each language version of each portfolio entry, each time you need to make a change to the gallery. You should add a language category to each portfolio entry. See the guide on using categories https://colormelon.com/easy-photography-portfolio-full-setup-guide/ Maybe you don’t have to do all this in the paid version of Polylang.
If you are on a secondary language page of the site, and if your front page contains the main portfolio page, then linking back to the front page from another page does not work. This is because the content of the main portfolio page can only be in the primary language. Easy Photography Portfolio does not allow a separate secondary language page for the main portfolio.
