About the Image(s)

At a beach in Waikiki, there is a walkway that faces the west and is popular for people to sit on and watch the surfers and setting sun. This particular evening there wasn't much of a surf so there were no surfers. Sometimes you can get good silhouettes of the people. In this image I couldn't decide if the contrast should be more to almost blacken the foreground subjects or should I leave a hint of detail. What do you think??