Brian G from Lancaster, PA sent me the cacti below.
I produced this pastel sketch for him in exchange.
If you would like to contribute to the project, please inbox me and send me a cactus.
In exchange I will produce a graphite, charcoal, pastel, watercolor, gouache, or acrylic sketch for you.
I am interested in the idea of exchange for artistic purposes/processes...you provide me a subject for future still-lifes...and I will exchange a piece art for your endeavor.