Good job! Nice UI.
But little but very important note for people from those countries: Add region called "Central Europe". Czechs, Slovaks, Poles, Hungarians... they hate being marked as eastern europeans ;)
However, they don't understand that for Americans, "Eastern Europe" isn't geographic; it's geopolitical... essentially, Europe east of the former Berlin Wall
There's South America the continent, but for some Spanish people (and possibly other peoples), "South America" is everything south of America (starting with Mexico)