Welcome to the forum,
Ok, the first one is a premier jersey, these are not faked, so it's genuine. The three others are fake authentic jerseys. The Cowboys jersey's jocktag is in the wrong position and the ball in the NFL logo on the collar badge is poorly done. Same for the other two with the collar badges, the thing to notice on the Bush is that it has a 2008 NFL logo on the collar and a pre 2008 NFL logo on the jocktag! The Peterson collar badges one of the worst attempts I've seen in a while.