The Avatar series was made for dark-based forums. If you think they're too bright now, you should see them on a darker one. They look much better there. I was attempting a cartoon-like theme for this set--it was the request that was made for them.
The text is not meant to be "catching" in this series, either, due to the fact that I didn't want to take away from the characters. It's their personalities that are the focus, not the their words.
However, thank you for your feedback--I shall most certainly try to improve. =) I'd definitely like to improve on text, because I can't ever seem to get that part right. >.<' Hopefully, lots of practice will assist me there.
I use Photoshop CS5.