Small sample, but i dunno what to make of a lot of the stuff like blinds play, poor showdown results etc. Thoughts?

Haha nice 14 BI downswing.

Ur river aggression factor is too low, you should call less and raise a bit more, probably gotta break that river limit calling habit. You should fold out of the blinds more, I think this is largely from calling with hands like [5d] 3-ways oop (which I believe is bad, but maybe I'm wrong).

Your WTSD and W$SD is very high, but so is your W$WSF so I'm not sure how all of these interact and if maybe looked at together this is good for laggy players. Once again, I think you need to fold more rivers.

I want to watch you play a session, I've never seen a NL$50 graph have the green line way above the red.

Youre calling WAY too many river bets. Consequently , youre losing way too often when you do call. River bets are obviously the biggest bets of any street. If you call too many large bets and are wrong too often.....you have a problem.

You seem to have the hard part nailed (making good bluffs, getting value).

SB looks like it may be a problem, but could be just sample size.

Re the river, you should use reads/stats to help determine whether to call once you've checked the turn (call more often vs an aggro obv). Also, in your example I'd be more likely to call if he was in position and I'd checked the turn and river to him.