Using the eyedropper in Sigma Photo Pro, the color correction for this shot, as a sunlight WB, was 2c+10y for the upper graycard, Robin Myers, and 4c+16y for the lower graycard, an 18% card. For the same shot as an in-camera AWB, the correction was 2m+5y for the upper card and 1m+10y for the lower card. The jpg here is using the lower card for correction. It appears that AWB did a better job than sunlight WB, but neither had nearly enough yellow.