Small Pocket Pair All in Bluff At River

Currently playing NL25 and am curious to get some opinions on the profitability of interesting bulffs.

HERO - UTG (100 BB) [6♥ 6♣]

VILLIAN - BB (100 BB)

UTG raises to 2 BB
BB raises to 12 BB
UTG calls 10 BB

*** FLOP *** [3♠ J♣ 8♦]
Main pot 24 BB
BB bets 7.6 BB
UTG calls 7.6 BB

*** TURN *** [3♠ J♣ 8♦] [K♦]
Main pot 39.2 BB
BB checks
UTG checks

*** RIVER *** [3♠ J♣ 8♦ K♦] [3♦]
Main pot 39.2 BB
BB bets 15.1 BB
UTG raises all-in to 80.4 BB
BB calls 64.9 BB

BB shows [Q♣ Q♥] (two pair, Queens and Threes), wins

Clearly, by the river 50% bet from villain, I don't see any bluffs I could even beat, perhaps some combos of AQ. I put him on his exact holding of pocket Queens, and was overall trying to fold out higher pocket pairs and maybe some AKo.

Is this bluff on the river overcalled by population or this opponent just decided to call this time?

From GTO Wizard, for Villian, QQ is an 100% fold here, and AKo is calling about 67.9% of the time (which i believe if I had AKo as villian I would fold)

and for GTO Wizard's Hero all in range:

it is using pocket 22 and 55 as bluffs and even some AJdd and AJss. What do you guys think?