Curves/Levels and Cross Referencing

 This is my first example of cross referencing. I have used an adjustment layer to change the curves of the image. I have changed the reds and blues to S shapes to  add and remove the colours from dark and light areas. With green i have just added to higlights and removed it from the dark areas. to finish the image and add the retro effect by adding a layer of solid green and lowering the opacity.

This is example 2 of  cross- referencing except it has used a solid yellow layer instead of a solid green layer.

Original image 1