Villain UTG seems to be a bit tag style over small sample. He seems a bit tilted just losing a stack an orbit before being 70/30 favorite.

UTG open $20, btn call $20, Hero SB As2s calls $20.
Flop ($60) 3d4h5d
Hero Donk bet $45, UTG calls, btn folds
Turn ($150) 3d-4h-5d-9h
Hero $160, UTG calls.
River ($470) 3d-4h-5d-9h-Ks
Hero all in. UTG ($475) ??

on the flop I figure UTG is going to continue with a lot of his range, but check a lot of over cards, so I chose to just donk bet as an exploit and start building the pot as I don't block any nutted draws. Hands like AJ+, FD, and over pairs will all call the flop. On the turn, I think over pairs still have to call a decent amount, so I went with a small over bet to put a lot of pressure on over pairs and fd and set up a nice PSB on the river. Sticking with my plan I went ahead and shoved the river. Friend said I should bet the river small for value, but I figured I can get some hero calls maybe some a hand like KJdd, KQdd, AKdd, AA, KK, QQ etc thinking I missed fd myself.

How's my line & bet sizing?