First, lets untick the Reflection_Lite_Multi, that's probably what is causing the over metallic look.  Next, expand all the nodes to display the previews and settings.  I see a potential problem but without the expanded nodes, I can't be sure.  Get rid of the Edge_Blend node and plug the image map into the Diffuse Color; drop the Diffuse Value to 0.85, it's too high.  No natural material is 100 percent diffuse.  Disconnect the texture map from the Specular Color, it's value is 0 and not contributing to the rendering calculations.