70s vintage metal art, flowers & butterflies, enameled copper brass wall plaques

Here's a whole feature wall full of hand crafted metal art pieces with colored enamel butterflies and flowers. Most of these are about 4 1/2" x 4 1/2", the large flower piece measures about 7 1/2" x 7 1/2".

These are wrought copper or brass, or a mixture of both metals. None of these pieces are marked or signed that we could see, though the weight and style is more American (Curtis Jere) than English (Bovano) I think!