Items like this for Civ Bonuses and Team Bonus. Stencil format. No onHover tooltips:   Then for technologies and structures, we get icons like these, which have onHover tooltips giving costs, etc., as in-game or in structtree: (technologies)   (Structures)  

Anything I should change, or any problems?

Thanks for the reply - I agree, as soon as I have things working for myself I wanted to make a 'getting started' page and work my way on through that. After a general browse it seems there is a lot of information on the wiki for technical people / contributors and far less for users, so wanted to add to that corpus. Hopefully @Stan`or somebody else can help out!     

Exactly. All we need at first is to make a generic layout (so every civ's Civilization Overview will look nicer right away), and then a civ-specific layout: perhaps for either the Achaemenids and/or the Athenians. If can make that work, then it should be a lot smoother making the rest of the civs follow suit with their own themes. All of the features will be in-place and all we need to do is plug-n-play. 

Yes, looks great. I also think that all the civilization-specific ornamentation adds a lot of personality. I can imagine a base template with more generic decorations that act as placeholders until they're replaced with civilization-specific ones. I think that could help the visual development of each civ overview.