I think it looks pretty well. And I love the artworks.
Also if I'm not mistaken, it uses the press turn, right?
Now, the only thing I don't like about these large portraits is that it takes a lot of space from the screen, and it could obscure some of the enemies. Maybe the enemies should always appear on the right side, because knowing who you're fighting is more important than an emphasis on the character's face and details. I mean, it's a detail after all.
Of course this is my opinion. Good luck and again, it's pretty nice looking!