Considering blue whales are around 24 metres long, and a human male is around 1.75m tall, both species "member" is about 8% their total length.
Animals? ... Are Pokémon animals? •-• That silly notion aside, I'd want the wings of a Griffon for flight (because the air is so free and calming), ears of a rabbit (for style points... And they look cute o.o) , and tail of a wolf (for extra balance since I can be really, really clumsy in my balance). It's not overkill >^>
I think iguana has the best abilities . Blending to anything. Having a tongue. That can reach out and grab what it wants