STEP TWO: Add a new black layer by clicking on the Create a New Layer icon at the bottom of the layers panel. Then go to the Toolbox and choose the Rectangular Marquee tool (M). Using the marquee tool, draw a selection around the face of your subject. Press and hold the shift key as you click and drag if you want to constrain the proportions and create a perfect square.
STEP NINE: To give your image a little more after effect. Select each individual layer that contains box shapes and add a simple drop shadow. Click on each layer, and then click on the Add a layer style icon (fx) at the bottom of the Layers panel. And choose Drop Shadow.