It won't look exactly like this, but one way you can get a similar foundation look (thus requiring LESS photoshopping to get it jusssst the way you want) is to detach your lens from your SLR, and hold it with your hand so it is sitting sort of in its mount but not actually attached, or with a millimeter or two gap.
This will let light leak in and cause effects much like that, without having to go use any different equipment. If it isn't enough, you can even have a friend shine a flashlight into the gap between your lens and body, or rubber band one onto your camera, etc.
Look up "freelensing" for more info.