Outside of the international top 100 charts and the KPop and Latino channels, there is not much in the Genre and Moods playlists for international music. In particular, a focus on international classical, religious and vocal music would be great. Searching for international classical music is very difficult, unless you already know of a relevant album or artist. The current classical, Chill, and Focus genres are almost exclusively European or North American music (Though there is not even a classic celtic playlist). There is so much more out there that would fit beautifully within these genres.
There are already genres in Browse that are called "Christian" and "Classical". Check them out. 😉