Thanks everyone for your comments.
I did not notice the red hash marks on the tarmac as repeating. Points to 777Boy for that one. You came close but no cigar, ...er... no bagel.
Yes, B767-400, the engines are close together, but because this is a fantasy plane to begin with, then that wouldn't matter. It proves that the plane could be a gag, but not necessarily that the photo is a gag. It could be a real photo of a gag plane.
SammyK mentioned the angle of the fake engine. I believe the angle of the outboard engine has the same angle as the original engine because it is just a duplication of the original engine viewed from the same angle.
As far as Hamlet's comment about the spoilers, I think you meant slats, right? The flaps on the leading edge of the wing? But I'm not sure that the photo reveals much there. At least to my eye, I don't see the conflict. Maybe your eye is better.
When I posted it, I didn't know that it had a fatal flaw. I was waiting to see if anybody could come up with one.
But what I suppose gives away the photo is not in the plane itself. I believe it to be without a dead giveaway. The fatal flaw was in the editing of the tarmac with respect to the center line for the nose gear as SammyK pointed out. That, as you can see, has been duplicated in the same process that duplicated the inboard engine. It is there in between the inboard and outboard engines. I missed that. There would never be two center lines. Proving that it is the photo that is altered.
For your comparision I have posted the original shot here.
There are two alterations that I made, other than the additional engine, that differentiates the original shot from my trickery. What are they?