If the big one is an 8 point then he should be close to 140. But if he's a ten point I would say closer to 150 to 155. He seems really symetrical. Good luck with him. And awesome set of pictures!
I would say that it "could" be the big one last year but that is a LOT of inches that he put on since last year. But the velvet does add a few inches in appearance so depending on the G4 's on this new big one, it may be him. Look at the new pics you have of him and see if his g4's are at least 3 inches long. Because the deer you posted from last year has decent g4s. But the buck from last year also looks a lot more immature. I'm not sure. Pike might be the guy to tell you what he thinks. He spends lots of time analyzing age and deer pics. Good luck this season.
Got any of them without velvet?
That first buck wouldn't be legal to shoot where I hunt because it doesn't have 4 on one side but that would be hard to pass up.