Looks like the pinion needs to go a little deeper. Try adding about .003 to the pinion shim.
Use an axle to turn everything when checking the pattern. Be sure that you have the pinion bearing preload set correctly each time you check it. If you are not consistant with the bearing preload then the pattern changes will be confusing. Add a drop of oil to the marking compound to thin it slightly and make several revolutions with the ring gear in both directions to wipe away the compound enough to make the pattern clear and easy to read.