Here I am going to show you how we can make a photo dual color shades and masking effect. we given snap shot of each and every step with their full description.
how to create color masking effect in photoshop
1 gray
2 color
First select one image create it duplicate with “ctrl + j”
Or go layer >> duplicate
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Now select first layer & add layer mask
Layer >> add layer mask
Now select second layer
Go to layer >> new adjustment layer >> Hue/saturation
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Crete this photo as in gray shade
Now select first layer
Go to tool bar select eraser & erase some specific part of photo
You can create the masking effect using the my steps.