Did you apply the material to ALL the faces of the object?
You may want to try using, or creating, a metallic 'gold' material and adding your 'texture' image as a greyscale bump map, rather than just relying on the image alone....it'll then react with any lights in the scene and change as the object, lights or camera are moved.
There is a 'Metal Gold' material already in the default list of materials.
Just a thought.
Regards.
MrToM.