I vote pink. Blue doesn't look right to me.Hmm - lets put it to a vote....Which do others prefer ? - Pink or Blue
When developing the looks of a character, overall cohesion usually trumps practicality.
Logic is important too, however. Sonic wears no clothes because it would get in his way. If I ran that fast, my pants would be liable to catch fire, then everyone would be calling me a liar.
It's often a balance, but "looking" correct is sometimes hard to put if you develop your own thing. Extra eyes are always helpful in collecting errors that would be missable by one that works day and night on a project.