I like this portrait because, first of all, it uses the Rule of Thirds by places the eye near the intersection. Also, it focuses specifically on certain features of the face: eyes and freckles. The hood and hair in eyes brings mystery also.
I remember always seeing this picture in my great-grandparents house. They have gone home to be with The Lord but this pic always reminds me of them discussing the farm! This would be a good idea for a pic of me & my sisters child!