I like selective coloring, in the extremely rare instances where it is done well. But, for me, SC should draw the eye to the real subject of the photo: perhaps strikingly blue eyes or a lone fan with an opposing team's jersey sitting in the midst of a sea of "home team" jerseys.
In this instance, as in most, I don't care for it, because the eye is drawn to the pretty young girl's headband and shirt instead of her. The cut-off hand and the unusual conversion tones also detract from the overall image somewhat.
That said, sometimes a photo doesn't NEED to be worthy of high acclaim among other photographers. Sometimes--perhaps mostly--it only needs to please the person the photo is FOR. I can see where this would be something a young girl would like and so I'd say you accomplished your objective for this photo.