It doesn't matter really imo. First hand i cna't really comment on cause its read dependent, but the river mirroring the turn bet often suggests weakness.

Second hand, what is your reasoning for slowplaying? I feel its a bit risky to not raise him by atleast the turn (i would normally raise him on the flop). However the push allin on the river was alright i think cause it sure looks like a busted flush draw from his point of view. The only problem i see is it is a great way to get him to fold two pair, and get him to call you with just AA, KK and QJ (if that is in his raising rangel, so relaly its read dependent.