I am not sure how you processed this, but it has a very natural feeling with beautiful cascading light. You do a large amount of work in black and white, but here, I am glad you shot color.
I thought this would score much higher. I like the angle, the light, and especially the distance between them and his expression that seems to be slightly aloof and both appraising and appreciative. Maybe if he had been slightly forward of her it would have been more obvious that he's looking at her and not at something else down the street? I'm sure it's a candid and a lovely one at that so what are you going to do :)