If you're up for something a little more cartoony, try Mallory Bash. You can do any of the three primary characters, but the main character is, of course, Mallory. She's a quirky red-headed ten-year-old that loves observing people and nature, but she also has a bit of a temper and she's definitely a schemer. When she wants something, she'll generally concoct a convoluted scheme to get it.
Here's a concept page for design purposes:
And a link to view the pitch bible, if you want to get detailed info on the characters:
Mallory Bash Home Page