Honestly, I have no idea.. I just installed those mods as instructed. Just make sure you activate the mods in the right order. I forgot the links but there are some good guides about load order for mods. It's quite complicated and time consuming but will be worth it! :)

How... I have all those mods but, there is always a neckseam, how did you get rid of that?

Amazing job!! :D You did this using race menu right? im new on this stuff, I recently used an enb for the very first time (performance enb) and im amazed, specially for the "real girls" mod, the texture of the body is very realistic