Would it be too much to hope that i can toss these extra packs in the graphics folder and they'll work fine? Or do i need to rename the new folder and replace the original while making sure that the total number of portraits is still equal to 200 and manually renaming and replacing them as needed?
Nope.
Extra packs within this mod will override those of main mod...those are for you to choose from, more like dirty edits. Many are thesame, some are diffirent variants, some are not finished.
With approval of main mod author i can provide link to my filtered edition of his mod. 146 higest quality "no deamon *** lewd cum" selection from all his packs. Cute, immersive, crazy or with dignity.