Next step we need to make the stars looking brighter, which is why we'll make a copy of the stars' layer and blur out the copy:



Then we'll make the Opacity smaller till 60%.



Make several copies of the girl's layer (ctrl+j), placing the copies directed to the right side, as far as the picture's edge and then we'll merge down the layers ? copies (ctrl+e). Don't forget to minimize the Opacity till 60%.



Blur it out, applying the next selection: Filter ? Blur ? Radial Blur.



Change the layer's Blending Mode on Soft Light:



Now we'll make one more copy of the girl's layer and the lowest one needs to be enlarged by size (ctrl+t).