Here is my plein air painting from last Sunday. Okay, I know it isn't spring yet, but this is what the grass looked like! The yellow in the distance is wild mustard.
Here is is, about halfway complete. As you can see I was in the shade and behind a fence. I added the sky color to the background hills, because really, it's all about painting the air, and the further away something is, the more air there is between you.