Kids as kids -- the vantage point emphasizes the diagonal object of their play. If you had made this image at eye level, it would be descrptive, rather than expressive. But you didn't -- you shot it from high, looking down, and you placed the colorful column in the upper corner, making the whole image come to life. Of course, the wonderful expressions of the kids help add vitality as well. Once again, you have organized your image on behalf of your idea.