Probably should have diffused the light more and provided more fill with bounce, try to leave minimal shadow. The idea of metal is cool and smooth.
Blow/Dust off particles and give the product a good buffing prior to shoot. Arrange by using gloves or anything just not barehanded, then blow off again. In fact blow off before every shot, else deal with it in PS.
Framing looks a little awkward especially at the top where it gets busy, time face is the important focus point here. Consider inserting a contrasting velvet/felt cloth (usually black, but feel free to experiment) through the product instead.