I think preflop in hand 1 is a bit loose, I would do this with Axs but I'm not sure with Kxs. When your calling his turn bet I think you have to go with you hand if you hit the flush. And when the river gives you kings full its a no brainer all-in. Cooler if he has quads.

I would raise or fold AJs preflop, limping is just putting yourself in a tough situation IMO. As played I think it is decent, you could make an argument for raising the turn in hand 2 but calling behind is okay as well.