I see you used flash, I am actually surprised the photo is not brighter.My question for you is do you have a photo from the other angle ( as in you facing the area in which you took that photo) The blacked out area is interesting, I was just wondering if there would be a probability of anything blocking the flash from where you were standing. Was there any additional lighting in that room (?), if so where was it located? If there was no other lighting or any obstruction to your right unless someone was snapping photos behind you.. I really could not explain it. Also do you have a before/after photo?