Shields are 'Aventine miniatures' oval scuta.
A group of Cretan archers were known to accompany Caesar fighting the Gauls and the Germans, as well as Numidian archers and Gallic archers and Balearic slingers.
I think I have to paint another 1 or 2 cohorts all 'Copplestone' minis with 'Aventine' shields.
As always I try to get the feel of the period I'm portraying by listening to audio books: In this case Caesar's own account and commentaries on the Gallic and the German war on you tube at https://www.youtube.com/watch?v=snft290-FRc
Not having listened to these accounts for awhile I was surprised at the clarity of the accounts and of course all the under handed back stabbing that went on during the wars.
Anyhow back to Napoleonics next month.