It looks lovely, I want to look at this lesson. A few years ago I did an experiment with maiden hair fern (native Australian plant grows near creeks). I decided to put it between two sheets of float glass. I applied one piece, then the remaining one was accidently soaked in alcohol (for cleaning
purposes only). After being fired I was happy to see that one piece was black, the other one was pure white so it looked very good. I hope some give it a try with some American plants, it will
be something new I expect.