Ask for advice on shooting metal ornaments.

It is best to use a SLR with a telephoto lens, with black flannel at the bottom and no glass at the top. The glass will reflect the light and use the side backlight to fill the light on the back of the main body. If there is no reflector, find a white cardboard or something. The exposure time is a little short, so there is no need to use a polarizer, which only reflects non-metallic objects. It is best to use a small soft starlight lens. If there is no soft lens, you can find a suitable transparent plastic instead, and stockings with big holes can also be photographed in a well-lit room (you can put them in front of the lens in advance to see the effect). The brightest star on that object should have been shot with a starlight mirror.