Looking up your cross
https://apps.rhs.org.uk/hortic...
I am familiar with Paph rothschildianum, it is such a famous Orchid, having bought a plant last year. It is surely still a couple of years away from blooming, when it is good and ready! Not sure if those Phrags or Paphs know the customary 7 years from seed to bloom etc are up
I didn't know what Paph stonei looks like. Just looked at some pics.
If I may - it is hard for me to read the Orchid names in your post, I am used to conventionally written down names of Orchids:
species written lower case, hybrids first letter Capitalized, clonal names 'Capitalized' in single quotes.
It would make it easier for me to follow.