Hard to find a reference of flat grass field with sun being low and on the side. But here’s a setup under more decent lighting. You can see SSS on right, grass is slightly saturated there compared to left. My eyeballing says it looks fine apart from being a bit noisy. That’s with sun at 20 degrees. In reality sun with such angle has a lot less intensity though.
https://i.imgur.com/RGXwim4.jpg