Nothing wrong with making it more of a silhouette, though. Don't be afraid of the deep blacks, even if they are mostly featureless. That might focus the eye more on the embrace, as well as where the kids are going.
Too much detail in that black shirt might be distracting, actually. Just a thought.
But, it is nicer to have a choice when printing, so I always err on the side of 'more exposure', which is, as you know, a lot easier to handle in the darkroom.