Nice moment you got, i can feel the competitive in the shot.
more good timing and good choice of exsposure, if it where mine I may be tempteted to make a tighter crop.
From the right (as we look) nearer to the back of her head, from the left a bit nearer the elbow, from the bottom near to the elbow of the person on the right.
The crop from the bottom will put more focus on the face and remove the empty space of green which has its own triangle shape which some might say keeps your eyes in that part not going up to the face.
Only my opinion