Its not horrible for a first try, but certainly needs more tooth contact. Notice how your only getting a pattern with less than 50% contact on the drive side of the ring? Make sure that marking compound is sloughed off at least 2/3 to 3/4 of the way down to the base of each and every tooth. The coast side, for some reason, seems a bit better, but none the less, dropping that pinion in further by a few thousandths will definitely help.
Also, dont forget to simulate load on the carrier. That will give you a better reading on the overall mesh of the gears, and change the contact patch some. I do this by grabbing hold of the front yoke (after tightening it somewhat onto the pinion) and wedging a prybar between the top of the housing and the edge of the carrier that the ring gear is bolted to. Pull down on it with a moderate amount of weight to create a frictional force on the carrier as you turn the pinion with your other hand. If your exerting enough force upon the carrier, that pinion should become tough to turn. It wont hurt the carrier or gear at all, as you are hardly putting a fraction of the strain on it that your drivetrain will, so dont worry about the friction caused by doing so. Youll get a more accurate reading of the mesh pattern when theres pressure upon the teeth.
