I like the design of the dialog boxes, but I think it's stands out a little bit too much for a background, it sorta seems like it's competing with the text for attention.
This is just an idea (I realize it would make for a lot more work), but what about colors that go with the character? They wouldn't have to be really strong colors, but i'm thinking more like white in the center that fades to color with a black border. I think it's a nice subtle touch to the colored text approach, and it'd probably look pretty good. Just an idea.
I forgot about the OMES: How about OMEGA JEW YOU WA BAN Administrator Class? Hehe. (Not saying we should definitely go with that style, but if we did I think those would work well.
@Skye: Looks good, but the hair looks kinda off. I think it's because it looks like one big solid piece moving back and forth instead of hair.
@Everyone: I think there's one of two approaches we can take about Rou resembling Meiling. One, change her hair color, or two, make sure to make fun of Rou somewhere in the game for resembling her. :V