Personally I do all my manicuring before I hang the plants, but of course after I chop them down.
They dry faster too, bonus.
Nice frosting on those last 2 pics!
The only thing I would do to prep for harvest is flush with clean water, no ferts for the last 2 weeks (1 week is okay I think, but others might disagree, depends how heavy into chemical ferts rather than organics you are).
Dark before harvest isn't necessary.
Letting the soil dry out is said to be helpful though. So I do it.