This package originally comes from a project recreating the Chapel at Versailles. The Alters were sourced from many churches in Italy & France as inspiration and guides. Specifically Florence, Venice & Rome. You can replace the marble in the center of some with a painting of choice in modeling software or an alternate marble texture.
One thing to consider is the renders are only using the Albedo. So in Unity with the provided normal and metal smoothness expect better results!
The following orders are used.
2 Ionic
6 Corinthian (2 spiral)
2 Composite
10 total
If you experience lightmap issues with the mesh. Save the FBX file as a blender file and use that.