I suggest some improvements/enhancements.
- Coordinate the pictures. 22.4 should have a picture of the waterfall, not of a Colombian street. Each section could/should have 3-5 pictures: a person, nature, the theme, cartoon. For the L&Culture, lots of pictures. [unless they greatly slow down the various platforms]
- A simple map when discussing geography like in 22.4 Paraguay. This seems like a simple low cost improvement.