[Raptor]

No more info needed, (obviously a Mitsu from the pic) in that area where the last pic is, there are several possibilites. The water pump is straight up from there so as well as the lines for the oil cooler. The water pipe has an O ring where it goes into the waterpump right above that area as well. You might want to feel the bottom of the water pump and see if it is leaking there, from the pic it looks like it is on both sides of the oil filter housing which would make me thing the pump is the problem.