What a great image. Nice use of b/w and brings to mind lovely togetherness of family and sisterhood (I have two sisters myself) I think it is wonderful that you didn't go with filling the screen up with the primary image...Great job and very nicely done.
Nice leading line. I like the younger sister leaning her head on the older sister's shoulder. Also, the braids are a nice texture. It would be perfect if there were nothing but water in front of the girls instead of shrubbery.