Naw, I'd say they're about the right size. When retracted, the claws need to fit all the way inside his forearms. Otherwise they would still stick out of his knuckles and inhibit the motion of his wrists.
Not really.. in reality, his claws can be no longer than his forearms.. and wolvie is short soo... first thing I noticed was "Wow his claws aren't too long like most people draw them!"
Marvel approval and then Hasbro approval...still fun nonetheless!
Great job!