Hmm.. I even like the one you posted first better than this latest version. But I STILL like the original characters so much more. They're so organic and fun - very cartoony and stylish like a Disney cartoon.
Here's the wallpaper I made from your original background and the characters you had on your previous site. I made a new logo and stuck it on there. Hope you don't mind.
I agree with everyone though. This is YOUR game and you need to be happy with it. I can totally relate to that.
Whichever you choose, I am sure the game will still be fantastic. Nothing beats these gorgeous background graphics. I love them.