uh, do they all have to be derivatives of animals?
how about an undead skylander that's supposed to be a parody of dorian grey? a ghostly gentleman that carries a decayed painting of himself. he can direct it at enemies to damage them, perhaps even throw buckets of sticky or slippery paint on the ground to either hold enemies in place, or disorient enemies as they slip-slide around.
That is an awesome idea. Dorian Grey was a great story. Classic literature Skylanders would be great. We already have a Dr. Jekyll/Mr. Hyde type Skylander with Alchemist in Giants.