So finish up your image -> New Layer -> Apply Image
Once you've done that double click on the little image in the layers tab then a window should pop up
Should look like that
Where the green box is make sure only G and B are checked
Then move the new layer to the left or right a little to get the 3D effect
Erase the parts on the face
"Our largest regrets are not for things we did, but for things we did not do. Things we did not say; love that never could happen. We bury our regrets by promising to change our ways. But sometimes we don't get to change the past."