Didn't quite finish this plein air sketch overlooking the west of the Tucson valley. But I was happy with some of the things that were happening in the clouds and rainfall. Still trying to learn this medium, I don't have much experience with wet on wet effects.
And the new colors in my palette completely threw me when I tried to paint the mountains. That'll teach me not to mix some samples before going out. I think that splotchiness in the blue on the mountain, center-right, is from something called "granularity" in the paint. I just read about this aspect of pigments in the new Daniel Smith catalog. Maybe some watercolor mavens could straighten me out if I'm wrong.