Is that one of stews tigers from the small tiger het caramel to the small calico? Ive notices some of those are super bright with some interesting patterns. looks a nice one though mate.
I know some retics can carry some similarities to sibling morphs but not to an extent as to say for sure. het albino sometimes brighten up morphs this can be seen in sunfire hets and platinum hets but not always the case. Ive noticed that a visual calico in breeding has made some patterns crisp and clean, smoother skin/scales making them look brighter, the sunfires can leave tinges of orange near the tail.