The points look fairly even to me, a typical hi/lo design. The diamond inlays look fine. They are sized appropriately for the points, small diamonds in short points and large diamonds in long points. The joint collar may not be backwards at all. It may be that the shaft collar is a single black band, sized appropriately to locate the silver ring in the center when the shaft is screwed on. It's actually quite clever in the case that the owner wanted to use after market shafts such as a Predator or OB that come with a solid black band.
As for who made it, I have no idea. It looks to be well made, and well used. I have no clue how anybody could tell what cutter type he used at any stage of the build, except that the inlays likely were done with a panto mill. I only guess that because they look like a common diamond pattern seen with panto work. Overall, nice cue.