The Buffalo picture is created with glass frit.
 
A kiln-fired glass having a gritty surface that can be felt with a fingertip under light pressure.
 
It had been heated and melted in the kiln. So there is no loss of glass particles.
 
The Buffalo picture is black glass frit. Other mixed colours in the backdrop are acrylic paint. To complement the completed job.
 
It is handmade. and cannot be copied like this original.