Villain looks regish player like 23/19/7.4 over 200samples.
flop : T/low/low board. Would bet widely with half size.
turn : kinda bad card for OOP. AdQh would be generally in check range bc of blocking backdoor diamond OTF. Probably CB with AhQx OTT with some frequency?
river : Kh is relatively good card OOP prob. Then I chose small sizing. Its targeting his low-mid PPs. Though AdQh have blocked some Flush combos/AK/AQ, thought that small sizing could be the most profitable one vs low/mid PPs...

My questions are;
1. If you bluff w AdQh, do you choose smaller size?
2. Is there any reason to choose other sizing exploitatively?
3. Any reasons to split ranges OTR into big bet(Flush, some AK, trips) and small bet(marginal Kx, QQ, JJ, ), gto-wise/exploitatively vs reg? Tbh I don't know about this. Maybe vs fish, two bet size would be better since their strong combos could be inelastic otr.
After checking OTT, OOP would have disadvantage about Flush combos prob. So simplifying with small size would be easier/better vs reg?
4. Wait. AdQh is wrong combo for bluffing? yeah...Its blocking AdQd/AdJd float otf. Ummm feel like the river is bit bluff heavy spot.

Anyway thanks in advance :)