dominant trait differences of Paph leucochilum, bellatulum and their hybrids

[PuiPuiMolcar]

I've been looking around for a Brachypetalum hybrid that can do well in my climate and I've ran into the Paphiopedilum Grand Paradise by Paph paradise nursery.
The parents are a mix of the bellatulum x Jennifer Reinosom, both are warm and cool growing paph.

To be honest, I'm not too reliant on this sort of conclusion as I tend to believe things are too good to be true. Also Internet images are unreliable but it seems like the bellatulum's bloom is smaller than the Reinosom (which parent is leucochilum,)
I'm not so sure if this is just a coincident that most of the photos of bellatulum were taken before they spread out, or the leaves of bellatulum are just small while the leucochilum is just generally a bigger orchid? I'm really just trying to grasp the size of the hybrid in my head.
example photos