I received this from a trade about two years ago. As you can see in the first picture, the flowers started out greenish yellow, then pink. All four pictues are of the same plant.
SOLVED: Unknown Pink Brugmansia
Tim, looks like either Frosty Pink or Insignis Pink.
My guess is Frosty Pink since Insignis Pink is supposed to be pink from top to bottom. Pretty pictures Tim.
As you can see, the pink stops at the flared area. Picture #3, bottom left, is of the leaves, is it helpful ?