I agree with the OP that the gear contact pattern on both the DRIVE side and the COAST side looks a little high on the teeth of the ring gear.
I would increase the pinion shim thickness about .003-.004. If the contact pattern still looks a little high, then increase the pinion shim thickness an additional .003.
Below are some contact pattern images of when I rebuilt my 12 bolt a couple years ago. You can see how the gear pattern changed as different pinion shims were used. I started with a .031 pinion shim... increased to a .034 pinion shim... and then final set-up was a .037 pinion shim (with .009 -.010 backlash). As you can see in the photos, there was not that much change in the contact pattern between the .031 and the .034 pinion shim.
How are you turning the ring gear to get your contact pattern?... turning the pinion?
You will get the best (most defined) appearing contact pattern by inserting an axle into the differential and then turn the axle to move the ring gear. I used a piece of 1x2 inserted between a couple of the wheel lugs to turn the axle.
You also do not need to put contact pattern compound on each tooth of the ring gear. I only coated about 3 teeth (both sides) in 4 different places on the ring gear.