Honestly I feel like further refinement is needed. Seems a bit hasty to rebrand on such a short design process. And a bit too much of a literal interpretation of the breif in my opinion. They feel a bit childish to me. All three have certain charm to them though. If it's not something you feel dead set 100 percent on I don't see harm in another few rounds. Not trying to be negative. it's just an important decision. :)