I'd say you look great with the two links hooked. If you want to get those bars more parallel with the frame of the trailer then go ahead and take some more tilt out. With that thumbscrew it should be relatively quick and easy to play with head tilt. You definitely dont want the front to squat.
I hope your camper is loaded up like it would be for a trip, or really close to it. If its not and you add in a bunch of weight you'll be playing with angles all over again. If you back off the tilt to get you three links it will give you some more leeway with adding or subtracting a link to fine tune things.