First tut ever! =]

Duplicate your layer twice, set the first on to screen 50% (depends on your image) and the second layer to soft light 50% (also depends on your images)

Selective color layer:
Red: -100/ +100/ +100 /+100
Yellow: +100/ +100 / +100 /-100
Cyans: +100 /+100 / +100 / +100
White: +100/ 0/ 0/ 0
Black: +100 / +100 / +100 /-51

New selective color layer:
Reds: -100/ 0/ +100/ 0
Yellows: +100/ -40/ -100/ -45
Neutrals: +37/ 0/ -43/ 0
Whites: -100/ 0/ +56/ 0
Blacks: 0/ 0/ 0/ +100

New selective color layer:
Reds: -100/ 0/ +62/ 0
Yellows: -100/  0 / -100 / 0
Neutrals: +85 / 0 / 0 / -25

And done! :) I would love to see what you come up with!