Exercise 18: Colours into Tones - 2

For this exercise I am lightning portraits complexion up without significantly altering the tone of the rest of the image.

original colour image

 

default black-and-white image

 

lighter complexion image

To lighten the complexion of this image, I used a channel mixing layer. I changed the red channel to +76, green channel +26 and the blue channel to +7. The complexion of the image looks a little lighter, but without significantly changing the tones  in the rest of the image too much.