Thanks. The third image is a render.

After I designed and 3D printed it I brought it to school when I was an apprentice (now I teach there), where a classmate thought it looked cool and wanted to make it out of aluminium that he got from his job. I got jealous that is was so much cooler than the 3D print, so I also got a large piece of aluminium to make my own.

How does one identify without using AI? Do I need to buy a book or are there good material online?

I sculpted this tiki mask using blender and then milled it out of aluminium using a 3 axis mill.

You can make your own, if you have a 3D printer or a milling machine: https://www.thingiverse.com/thing:4636877