Any suggestions or feedback?
I think it looks pretty good, but there's a lot of room for improvement. While most of the criticism so far has been related to the style/consistency of the faces, if I zoom out and look at it as a whole, I actually think the weakest part is the text in the center. There's nothing interesting or videogamey about the text. Almost every JRPG logo out there has an interesting typeface and at least some level of complexity in the text style/effects (gradient, outline, inner/outer glow, drop shadow, etc.). If I were you, I'd collect a bunch of JRPG logos as reference and copy the parts you like from their text styles.
If I were hired to redo the logo (don't hire me!), I'd make the text way bigger with a JRPG style, and then I'd convert the circle of faces to a more abstract monochromatic line art logo. It would function as one of those JRPG background logos behind the title text. As an example of what I mean, see Last Story, Edge of Eternity, Threads of Time, etc. Right now, the heads are the point of focus and the title is effectively in the background. What I'm suggesting would flip it around. This is just one of many ways you could make a more professional-looking logo.
If you want to keep it as is, I'd recommend shifting the positions of the heads so that the bottom girl (probably the best one) is perfectly in the center horizontally, and then the other heads can shift around slightly clockwise to make the whole thing more symmetrical. I'd also experiment with different head orders. Finally, I'd experiment with a map paper/parchment background instead of the current solid white, but that assumes the background isn't intended to be transparent.
As for the faces themselves, they look fine to me, especially in the context of in-game portraits. The only parts that jump out at me at first glance are the blond guy's left eye and the eye spacing of the girl at the top. While the shading styles aren't perfectly consistent, the overall style is consistent enough, especially if they are on separate panels/screens.