I seem to remember reading somewhere that Pertwee's costume was inspired by type of clothes Bowie wore. If that is true it could be a case of two people getting inspiration from the same thing. It is interesting that the 11Th Doctors costume seemed to be inspired by the second Doctor's and the 12th Doctor's seems to have been inspired by the 3rd's.
Still it is giving me a cool retro vibe and I can't wait to see the 12th Doctor in action.