Molding & Stamping Plastic

Would you know that this is plastic? I cast the face and the flowers with Friendly Plastic Modeling Pellets, hot water and silicone molds. The two panels on the edge were done by stamping on to Friendly Plastic Strips that had been heated with a heat gun. Plastic is shiny and I wanted a earthier look so I painted it bronze and micaceous oxide. When that dried a applied a wash of titan buff. Gone is that plastic look.