Amazing mod. It opens many paths, for instance now I can finally play as an accurate Pagan Frisian, Old Saxon, Frank, German, Langobard, Goth, Suebi & Anglo.
I'm surprised it's taken this long for someone to make this too. Good choice on picking "Germanic" instead of the more specific "Norse", as not just the Norse worshipped their pantheon.
I got some suggestions;
Turumic could be renamed "Uralic," "Ugrian," "Siberian" or "Shamanic" (take into consideration the Olkhan holy site. A Mongolic island known for its Shamanism.)
The Basque faith could be named "Vasconian", though the basque pagan faith in CK3 is already influenced by Abrahamic faiths. Erra Zarrack just means "Old Ways" apparently, and I haven't found a pagan revival group with the same name.
Given the context behind it being adopted by a previously Christian aristocracy, I think it makes sense already.

Amazigh.