At a MINUMUM I think that will be a 4.5 year old deer come November 2015. You cover up his antlers from 2014 and he actually shows some characteristics of a 4 year old last year. (Neck merges almost seamlessly with brisket, hump over shoulder, swayed back, belly sag, etc, etc etc)
I agree after looking closer at last year's picThose pics point towards the younger side. Just goes to show it is best to have multiple pics to most accurately get to age determinations (educated guesses)