I think calling the flop in hand 1 is pretty terrible. You're going to give him 11:1 pot odds to catch up to you? The only hands you're 'extracting value' from would be 55, 77, and 88. The rest either have you drawing to 2 outs or are getting huge odds to catch up (78 with a gutshot would be a profitable bet for UTG+1). Find out where you stand, the raise was goot. btw, before the flop I simply limp and look for a set, as played, raise the flop.

In hand 2, I bet the turn if you think UTG+1 is loose and will call with a weaker ace (AT, A8, AJ, tons of 25nl players will limp/call with those types of shit aces). If he's tight, I would check behind like you did. River is fine.

Hand 3, raise the flop, to ~1.5 probably. River is ok, I guess. By the bet sizes, it looks like BB is a typical donkey and would probably call a river raise with any two pair, but a higher set is a possibility too. Reads.