For the banners, I don't much like the placement of the people. They're all relatively the same size, so there's nothing that really distinguishes them from the other. For instance, you'll have box art (from the
Tales series as example) where they have a collage of the people and it looks like
this Abyss cover for NA or
this Symphonia 2 cover for Japan.
There are a lot of characters on it, but they're so that the figures aren't all the same on it. Yours are more in a line, so they expand a larger distance and there's not really a focal point.
Anyway, I agree with Voyou on the top four. I'm really loving the backgrounds and overall style you use. The text fits in well too, which is good. The second and third are my favorites though. Really nice stuff. Good work on them. =).