It doesn't match up perfectly because it is a picture of a reflection.
There is the distortion caused by the angle the phone is being held at (and the angle the pic is taken from), as well as any distortion from slight concave or convex areas on the surface of the phone.
The point is, even if we assume it is legitimate and original, the photo is completely worthless as a proof of anything at all, because it can be easily replicated.
Anyone can take a picture of their iphone reflecting a picture of the desk in AF1.
That picture would end up distorted to the point that no one could 100% prove where it came from.
This would actually make sense if you consider that Q may be leading us by the nose to that point; that they will be able to use a similar method to drop video / pictures while sidestepping any NAT SEC laws.