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Now depending on what version of Photoshop you have will dictate what you do in this step, If you have CS3 or above then just right click on the girl's layer and select Convert to smart object. Any other version below CS3; then select the girls layer then create a new layer then hit Ctrl+E and when the dialog box comes up select apply. Now I scaled this layer slightly and move it a bit too then added another layer mask and used the same technique as in the last step to blend the model into the background, this is optional and only do it if you think your image needs to be blended more. If you got stuck at all then just go and download the PSD file I mentioned in step 2.