I am not a photoshop expert but this is my take on why I think it is fake. The shadows from the poles and trees don't match the shadow angles cast by some of the deer. The 2 to 3 deer in the fore ground appear to be in spuperior focus and detail then the rest of the herd. I also notice what appears to be a single patch of corn/bait that the foremost deer is feeding on yet don't notice it in the presence of other deer. But it might be real. Like I said I am no photoshop expert, but do see somethings that make me go hmmmmm.