As Wes said, "Can't rule out the possibility." When trying to decide if two pictures are of the same buck, instead of looking for similarities, I look for defining characteristics that make it unlikely the two pictures are of the same buck. In essence, I look for anything that says, "Nope, not the same buck" instead of looking for characteristics that are similar (which most bucks will have). I see no antler characteristics between these two pictures that prevent them from being of the same buck.