I first ran into this story over at Cear Azkaban, and as is my unfortunate shortcoming, didn't review... mostly because it was late and I was tired. After that, I was just lazy.
Regardless, it's an incredible story, and actually fairly original as I've only run across _one_ other story in all of my reading anywhere that used this concept, over at the Anime Adventure, and it was done very differently.
First, I really like the animals you went with, Panther and Phoenix is a rather sensible and cool sounding mix, something I'd do myself if it were possible. Furthermore I really like the side effects that it's had, from moderating Harry's emotions, to suddenly granting him powers of a Phoenix, it's all good. And a rather clever way to power Harry up while still remaining reasonable.
On top of that, not only do I like the Harry/Harem setup you're going for, but your choices of Harem girls is very well received, by me at any rate.
The reason I stopped to review this chapter in particular however, is because of the bit with Fleur. Everybody, naturally has a failing of character, be they factual or fictive, or they do at least if they're any kind of interesting. And the 'flaw' you added to Fluer was not only amusing, but seemed to fit extremely well. The whole telephone conversation was hilarious.
Anyway, you're doing a great job with this, and there's really nothing to complain about... other than, I suppose you've slowed down your updates since you started but there's not much I will say about that, since it tends to annoy most authors... and rightfully so. Thusly, I'll only say that I'm loving this story, you're doing a great job with it, and I'm eagerly anticipating the next chapter or chapter fragment you post or send to C.Azkaban. Keep up the good work.