Very Hard Shadows on Low Poly Mesh/Material

Hello Folks,

I was wondering if someone could take a look at this screen shot and give me some advice for how to keep these very dark shadows from being so distracting. It is a procedural mesh, and I could be wrong, but I believe the mesh is fine and that since the normals are perpendicular to each face it is resulting these harsh black shadows on any plane at certain sharp angles.

Here is the screenshot:

and here is a pic of part of the material:

[here it is at blueprintue][3], but be warned it’s a real work-in-progress and :slight_smile: I don’t know what I’m doing.

I have unchecked the Tangent Space Normals box.

Any hints as to a good way to address this would be greatly appreciated!