Villain unknown from russia (russiand tend to be grinders and sometimes on the aggro side of things).

Standard Flop bet.
Turn is a standard bet against weaker Kx and also against random floats that picked up a pair by now. Should I size up the turn (20c-23c maybe?).

On the river it gets interesting. JT makes the straight, there are some twopair possible that are well within his range. But additionally the Flushdraw busts.

I think if I bet river people are not calling worse at least that's how it is in fullring zoom games in my experience (they simply fold weaker Kx because they think I'm never bluffing here OTR).
So either check/call or check/fold is the correct play.
Given his smallish betsize I decided to call (I do also block JT with my Tx blocker so I felt good about the call).

Do you guys have any suggestions what I could have done better?