I get leery of all that brown in the background and wonder if I will ever be able to fill it with grass, so I squeezed out some yellow, black and several greens and blues and go to town. Some people don't realize that a nice lemon yellow and black makes a beautiful set of greens. Mix yellows and blues and you get many many more. I also include some blues and blacks in the grass to indicate shadows behind the grass. It's far from being done, but that brown is not a solid block any more. All of her wrinkles on her forehead and nose are also blown out to white in my reference photo because it was taken in the bright sunshine. So I have to try and create what they really look like. Lots of back and forth on these! Then I realized she had a spot of brown on the top of her head from another photo. Might as well indicate that too! Added some more dark blue pink grays inside her mouth.