Grandchildren A-Z WIP 2

I couldn't leave this alone, so did a few more shadow washes here and there and started defining their faces. I now have to force myself to leave it alone for awhile as I am starting to go for too much detail, too soon, and will mess it up if I continue.

That dark shape to the upper right corner of the painting is a shadow from a twig when I took the photo outside. I completely missed seeing that in the photo and am too lazy go out back and retake it. Please just pretend it isn't there?