What to expect?
Where you drilled through studs to run wires through them, the edge of the hole closest to the inside of the room needs to be at least 1.25" (maybe a littler more, 1.5" maybe???) from the edge of the stud. If it is not, you need to have metal nail plates on the studs.
As for securing the wires going into a box, I thought it needed to secured within 8", not 12", but I could be wrong. But that's an easy fix. If it is indeed 8", I'm sure the inspector would likely just tell you to add a closer staple.
I'm not a professional electrician, but I'd say I'm plenty advanced enough as an experienced DIY'er. In my experience with electrical inspectors (in both the towns I've lived in), when they see that a homeowner was doing the work, if it doesn't all look clean and done right, they will scrutinized everything in fine detail. But if everything looks up to snuff overall, they give you much more benefit of the doubt and aren't as in depth with their review. In my opinion, once you walk into a roughed-in room, you can tell within 15 seconds just from a quick overall visual inspection if the wiring was done by a complete hack that doesn't know what he's doing, or if the person knows what they're doing and did it all properly.