Tutorial ~ Emmy Rossum
go from this
to this 
1.
Crop the base image2.
Duplicate the base and set to Screen 53%3.
Hue and Saturation Layer Hue: 0
Saturation: +38
Lightness: 0
4.
Selective Colour layer.Reds:
Cyan: -41
Magenta: +33
Yellow: +42
Black: +35
Yellows:
Cyan: +100
Magenta: -100
Yellow: -100
Black: +100
Cyans:
Cyan: +100
Magenta: +100
Yellow: -100
Black: +100
Neutrals:
Cyan: +19
Magenta: -11
Yellow: -50
Black: 0
Blacks:
Cyan: 0
Magenta: 0
Yellow: 0
Black: +100
5. Fill a layer with a dark blue
[#000327] and set to Exclusion.6. Set this texture to Screen

7.

8.Play around a little. Add brushes and play around with the image. Tweak some of the layer opacities if things are looking a little odd.

9. Finally, add a Brightness/Contrast layer.
Brightness: 0
Contrast: +13


