So Regonas, I can see you are getting better with your concepts. Out of these four I prefer Margal Grull. Though you have a lot of similar mechanics spread across these concepts, such as marks and empowered abilities. Just keep that in mind not to keep reusing these constantly.
Their kits feel more fleshed out to me
You should link to all of the concept pages
I like Lady Fate and Luxuria the best
Is that Regonas character from Unchartered?
I like the Enslaver Gameplay. Though I think, it could be cool if applied to a psychic mage or something similar. You could maybe have different ways of bending the minds of your enemies (taunts, enslaving them), just with more mental magic, than pure physical force. Awesome concepts, though!
Luxuria since her kit and theme are more fleshed out.