I just noticed on your images, that you are spot lighting the areas you are seeing something. But all we can see is glare. So change the angle you are taking your images. Allow the light to be on the normal side of the devices and allow the light to fall over the area you want to show us. Doing this will allow the shadow to fall on that area you want us to see.

Note on these images that the light falls across the doubled die area, and doesn't spot light that area and turn it all white. The best shot to me is the upper right image. The shadow enhances the doubling.