thin value OTR ?

Flush and straight got there, board is paired... what weaker hands will call you there?

Worth a shot imo.

6 combos of KQ + 12 combos AQ that will call you down = 18 combos of hands that you beat.

Straight is rarely possible - I think most players would either 3bet T9s OOP vs MP or fold.
Besides that there's only 4 possible combos of straigh (if we assume the villain is good player and cold call only suited combos of T9).

Flushes huh... ATc (would he really float this OOP?), KTc, T9c (3bet pre?) Only 3 combos of flushes, though I would make KTc only reasonable flush that there's out there

Trips - AJ 8 combos, KJs 1 combo, TJs 2 combos, J9s (Really?) 2 combos = 13 combos that you're behind that are logical (if your opponent knows his opening / calling ranges).

Basically - There is enough combos that you beat and could get a thin value OTR.

However your opponent could easily be punishing you for your bet size OTR.

I would go with half the pot size almost always in this spot. Everything below 50% of the pot size bet is obviously weak bet. Good players tends to get you there.

Overall - For this limits - good fold. You do have enough combos that you're ahead and that you beat with your two pair combos.

Gl

Raise OTR usually means strength. I wouldn't call here as no weaker hands raise you here most of the time. I might bet OTT actually. Did you see reasons to slow down?

Bet/fold river is fine. However you miss value by not betting the turn. If villain calls a turn bet you can also bet/fold river small to get called by a Q. He also proabably raises any J on the turn due to the wet board, which gives you a better idea where you are in the hand

It's not even a 3bet pot and villain could hold from flush to full house so you don't lose too much by folding. Maybe b/f OTT. You are ahead of the flushes and still have value against AQ, KQ, QT, JJ-88 etc. and if he doesn't complete is not usually going to burn money bluffing OTR.