More refinement of feathers, and additional adjustments in the background blue. In the beginning, my choice of blue was mostly just a function of: what will pop the red? I wasn't even thinking of the sky. But as the colors of ash/smoke develop, that blue is definitely starting to serve as a sky blue, which is pretty cool (literally, lols). I use some of that sky blue as a way to lengthen the gestural arc of color that connects feet and head: