With some minor refinements the T bird could look a lot more like a Triumph. Personally, I don't like the chopped rear fender or the chopped sprocket cover. Fix those, put a more Triumph looking logo on the tank, straighten the pipes, and possibly add shroud covers while you're at it. I think the America looks like a Triumph cruiser. I don't think the T-Bird or Rocket does.
As my father always used to say, "nothing stays the same".