MK Tutorial by Nokitas
From this
to this
1- Crop your image. 100x100 (in case of icons like this one. But you can use this tutorial for anything you want)
2- If you have more then one layer, merge them all.
3- Duplicate your base and set it to screen 100%
->
4-Now go to Layer -> New Adjustment Layer -> Curves
Input - 124
Output - 135
5- Go back to Layer -> New Adjustment Layer -> Curves
Input - 115
Output - 85
6- Go to Layer -> New Adjustment Layer ->Selective Color
Reds
Cyan +100
Magenta +100
Yellow +100
Black 0
Yellows
Cyan +100
Magenta +100
Yellow -100
Black 0
Neutrals
Cyan +42
Magenta -18
Yellow -15
Black 0
7- Back to Layer -> New Adjustment Layer ->Selective Color
Reds
Cyan +100
Magenta +100
Yellow +100
Black 0
Yellows
Cyan +100
Magenta +100
Yellow +100
Black 0
Neutrals
Cyan +7
Magenta +11
Yellow +16
Black 0
8-Go now to Layer -> New Adjustment Layer ->Hue/Saturation
Saturation +23
9- Now Layer -> New Adjustment Layer ->Brightness/Contrast
Brightness +6
Contrast -4
10- Layer-> New Adjustment Layer ->Curves
Input-106
Output-123
11- Once more Layer-> New Adjustment Layer ->Curves
Input-109
Output-91
12-You'll get something like this.
Now is all your choice..you can leave it like this or you can add some pretty brushes. ^^
Hope it helps.