Echinopsis chiloensis – Hedgehog Cactus

The cactus grows not far from the house in Arizona. The media, casein is new to me. Totally opaque, it’s quite different from the watercolor with which I’m familiar. It’s like gouache. a lot easier than watercolor, it has a very different look and feel, very graphic an illustrative, less touchy feely.  https://www.dailypaintworks.com/buy/auction/1004456