Guuurrrl you need a comment.
Well, I have to say, I really like the characters you've designed! Each one have their own personality and expressions that make them so different. I think the colors in the first two pictures look great!
The very last picture has to be my favorite. I love the design and the details. Something about the design makes Megumi look like an outgoing, fun person. Aha, I also love the outfit, it's very cute!
I wish I could see Megumi in a colored drawing, I'd love to see what colors you'd use. ^..^ Anyway, really nice work! =D