It's very light on festivals outside of America. I didn't notice a single Dutch one. There are dozens and dozens, and that's just one country.
I'm not really expecting to see all the small ones but would be nice to have the major ones at least.
Site looks nice and it's kind of comfortable to skim over the stuff and filter a bit. I'm not really a huge fan of the genre icons, some of them don't really make sense for me and look a bit like placeholders imho.
Other than that, good job and good luck.