Great article with lots of details and flavor...Glasya is appropriate nasty (especially that power that knocks you unconscious and forces you to make death saving throws). It also makes a nice primer on the Reckoning.
Only skimmed it so far, looks quite nice. Same feedback I gave Paizo back in the day....give us some cults/monsters/whatever we can use at a lower level that are related to this.....but that's to take it from good to great.....