I think the velvet buck and the buck in the background of your third picture are the same. The buck in the last pic is not the same.
Some people on AT said the same thing.. I think the buck in the 3rd pic looks much bigger than the velvet one, wider, taller, and longer main beams. But then again bucks do seem to look bigger from the back. I also can't make out a browtine the buck walking away's right side.