Combine this layer with that one the girl is situated on: Layer ? Merge Down (ctrl+e). It's necessary to move off the crown of her head. For the beginning we should move off a part of the crown, situated on her hair, marking it preliminary with Polygonal Lasso Tool. After that we should select the Clone Stamp Tool to paint very accurately the rest of the crown by copying the hair near the processing place.



Move off the same way the band from the girl's hand.



Because we have several visible patches on the picture and the photo is of bad quality, we must use very accurately the Smudge Tool and smooth out the dancer's skin. The size of the instrument may be changed, depending on the processed zone.



Copy now the most neutral hair's nuance with the Eyedropper Tool and start using the set of prepared brushes that may be downloaded here: http://www.deviantart.com/deviation/25147133/. Use them on a new layer to add a hair tail (insert it on the layer situated under the girl's layer and then use Free Transform option to turn it around and merge down the layers).



Select after that the Brush Tool of 1 px and make use of several colors (the light one, the neutral and the dark one) to make the girl's hair livelier.