First notice how his head is considerably larger than what it ordinarily is. But what convinces me even more emphatically is the "whiteness" of his hand which is much too pale for his normally darker skin shade.
Obama dated Racheal Maddow?
That fits the paleness of that side of his head. It's in the sun. Or did you really think his skin tone would appear uniform,regardless of light and shadow?
I'm not so sure about the head, but the scarf makes the neck disappear and produces a strange effect.
Obama's Harvard pictures have a similar "big-headedness":
Maybe the president is a different guy from the one who went to Harvard.
Or maybe he had his noggin surgically reduced somewhere along the way.