And the back two look bigger than the photogenic one to me.Looks like two more behind that one.
Both of the "back ground" bucks are to the left of the centered on. One is right on the left edge, the other is just to the left of the center bucks rear, look for the white throat patch.I only see the 2 where is the other.
There is two more behind. Hold down your control key (ctrl) and roll your mouse button to zoom.