Radial Tree Improvements
Ensuing you can see the gradually modification in three illustrations:
Evidently Problems here are the non-existing typographical hierarchy and the layout in form of distances.
Firstly we changed the font to a better readable one and added hierarchy by bolding structural elements. Additionally we optimized the distances between the labels and nodes.
Finally several graphic variation in form of link-strength and node size and color.
In conclusion very few and slightly unsophisticated improvements lead to a considerably more readable and aesthetic visualization.