2nl - Can we raise the river as a bluff?

Posted 5 years ago

Blinds: $0.01/$0.02 (6 Players) BN: $2.22
SB: $2.06
BB: $5.59 (Hero)
UTG: $2.41
MP: $7.23
CO: $2.19

Preflop ($0.03) Hero is BB with 8 A

UTG folds, MP raises to $0.06, 3 folds, Hero calls $0.04

Flop ($0.13) 7 4 4

Hero checks, MP bets $0.05, Hero calls $0.05

Turn ($0.23) 7 4 4 A

Hero checks, MP bets $0.15, Hero calls $0.15

River ($0.53) 7 4 4 A 6

Hero checks, MP bets $0.34, Hero

Villain is on the tighter side but no real read. Can we raise the river here as a bluff as a bluff here or are we over-bluffing?