They are definitely in the SOOC version, but not as visible. I had originally removed them, but felt the image works better with them in place as they add nuances that add separation to certain parts of the image. What you are seeing is the back lighting wrapping around the subject; this is typically referred to as "rim light" in standard portraiture when it is used. It's there throughout the image, but because the background is white, it is more or less masked out.
Here is a closeup view of the arms where the effect is quite visible. Without the lighting, the arms blend together and the shot does not work as well.