How to cut out? In Photoshop, use the "Lasso" tool to make a rough cut out. Now "copy" the image from the edit menu, select the White House image, select paste from the "edit' menu. To set the image to required size select "free transform" from "edit" menu after which you will be able to set the image to any size. Clean up the edges of the image using "Magic Wand"  tool and the eraser. You can zoom the image for precise control. Similarly cut out the VIPs image and proceed the same way. To make this picture we have worked in 3 layers. in order to work on a layer, you have to select "windows" , "show layers" (if not already shown). Select the layer you wish to work on (represented by a thumbnail of that layer)

You can adjust the colour/hue/brightness of each layer from the menu "image" --> "adjust"

And finally, add special effects from the menu "filter".