That is really cool. I have often thought what a hybrid out of a tiger or flower with a black ray (leo or Hen) would look like. If you look at the related videos you can see the tiger/leo hybrid pup.
Those are sweet rays. I am amazed at the size of them though. I was always under the impression the female leos needed to be at least 18" before breeding, and the tigers/flower had to be a lot bigger.