It actually looks like the photo was cropped in to give it better detail. Snautzer's photo shows the gunner in better detail, but there's a few things that look weird: the Hinomaru on the starboard wing is missing (as we know) and the number(?) on the cowling looks to be altered. Perhaps that's a trick of the pixels, but to me, it looks like it's been changed from a "4" in Wurger's photo to a "6" in Snautzer's photo.