Occasional spelling and format errors aside, this story is reasonably good. While you've Uberized Harry, as this is almost parody that's fine. You've had to stretch things so the girls don't kill each other with jealousy, as real women would do in a situation like this, but its a fantasy story so why not? I'm enjoying the description of the Norse magical creatures, and looking forward to Harry drawing out the girls true forms as they make love. As acceptance of the true natures of magical beings is crucial to the established context of this story you've created, that would follow nicely. I'm also looking forward to him parading into public Wizarding society with his Consorts, and dealing with the pureblood backlash, as well as the authorities attempting to denounce him or even demonize him as "Dark" because he keeps non-human consorts. If you do intend to make this story much longer, that will need to come into play. While its not perfect, I give this 4 out of 5.
Author's response
I'm not sure if i should use those particular Huldr myths in my story. The condemnation by Wizarding Britain has a place, and a large one at that. I did warn up front about the Super, and the rampant imperfections. Enjoy what you can.
Vanir