Messing around with some sunset colors

For a while when I didn’t know what to paint I would play around mixing colors in a sketchbook. I’ve found it’s more fun to experiment in the context of loosely structured studies, especially with skies. I observe a lot when driving or waking the dog, but can’t sit out and paint them during those times, so am trying to transfer those observations into experiments–not so much for accuracy as for impression. Tonight I had a few minutes, and wanted to do some more wet into wet practice, seeing what could be done with a really cheap 3/4 inch flat brush and a few colors– yellow ochre, permanent alizarin crimaon, ultramarine blue, burnt umber, and hookers green. I just played around with the sky then added what seemed like a reasonable ground and horizon. This one is really about the sky.