Using some gold spray paint from home for the general shape and using a bronze spray-paint I made a second test.
For the final test I spray-painted the whole figure onto the back of my iPhone case.
The second spray-paint project that I tried was for my friend that lives in South Korea. I bought a cardboard "H" from the Paper Source because her name is Hanseul. Then spray-painted it with the gold spray-paint. Then making a stencil of her name I spray-painted one side in bronze and the other with a neon pink.