I'd say he's 4.5. While he may not be a mass monster often times the infrared night pictures make the mass of a bucks rack appear less than what it actually is. Good luck with him!
I'd say hard to tell.
Single pics can often fool me, since a buck's particular position (including the terrain)
can sometimes make the neck appear bigger, belly look fatter, legs look shorter, etc.
Really need multiple pics.
What's the date of this pic?
My current "guess":
2 1/2 or older
with 2 1/2 being the minimum age I feel 99% certain.
(This is not saying he doesn't appear older, just saying single pics can mislead.)
More pics, my guess will likely change to 3 1/2 or 4 1/2 or older
I'm really wanting to agree with Andy,
but if that pic is only a week old,
just to be consistent,
I'll have to stick with "2 1/2 or older",
but am emphasizing the high likelihood he's "older"