Ryleen got it. She's a Squirrel... and I'm going to admit it, I've based a bit of Leaf's personality from that character. Even though I came up with the basic idea of Leaf before even reading that comic it did improve my overall "performance" to have someone else's characteristics to blend into the mix.
PS. The RP leader is a penguin, the Elemental Mage is a human, the Shadow Assassin is a cat and... yeah, the rest is Squirrels.
Subject: Sequential Art gets it 
