With regard to autographs, many people here are hesitant to point out specific flaws and tell-tale signs. They don't want to divulge key info or tip-off the forgers. This is normally for good reason....
I know you wanted a more detailed response, and that's frustrating. But a public forum is perhaps not the best platform (for this particular niche anyway). With that said.... lots (if not most) of this group is self-educated. It's not an overnight process... more like "trial and error" with all of us having made some mistakes along the way.