Ok, I will join in the guessing fun!
Is this a primary hybrid?
Is it a cross between a primary hybrid and a species?
If it is a cross between a primary hybrid and a species, would the species parent be Paph. philippinense? From the look of the twisty petals, I guess there is philippinese somewhere?
Is paph rothchildianum part of the parental lineage?
So how did I do?