hmm usually people like to see 10k + hands to judge stats and stuff, but you run close to what I run at, and I play 10nl. So I guess that's good. After you get 10k hands I guess you could post some position stats. UTG I run 7.5/7.5 and on the button I run 20.5/13 but I think I need to raise more from the button. It seems like you loose big pots, don't become a calling station with second best hands. Also in the first couple of thousand hands it doesn't seem like you win any big pots, just medium ones. If you are slow playing you should replace that tactic with the bet bet bet strategy. Anywhoo here are my thoughts on the hands (note I only play 10nl, so take my advice at your own risk).

Hand 1: So why did you play this hand? I bet it wasn't to hit a lone K. It was to hit a flush, two pair, trips, fullhouse etc. So I don't bet the flop here because you have a K with a crap kicker and there are soooo many people in the pot you are probably outkicked or beat somehow. Although if it was the 4h on the flop than I would bet because I would have a flush draw + top pair, which is a sweet hand. When the 3rd K hits on the turn this is when I bet, because if everyone checks around it probably means that you have the best hand right now. And the 3rd K showing reduces the chances that somebody has a K with a better kicker. I think the fold on the river is good though. Somebody always has a straight (probably this i think), fullhouse or possibly a better K hand than you.

Hand 2: Raise more preflop plz. You have 4 people that just limped ahead of you make it at least $.4 if not a bit more. Raising a bit more than the 4xBB + 1 for every limper might be good here because there is so many limpers and at these stakes people just love to call and you don't want to get into a multiway pot with AA. Anyways flop bet is good and so is the turn bet, although I probably would have folded to the turn raise. I swear everytime somebody raises me big it is never a bluff at theses stakes.