Lovely Paph. druryi and kudos for flowering it. All what I have seen so far is...they won't open more and this is their normal shape.
Unfortunately mine is still far away from flowering, maybe in 2 years time ?
I have it in my basement under LED-lights. It lives together with gratrixianum, esquirolei, Leeanum and a few other hybrids. No heat, a window opened almost every night - not when there's less than -2 C outside. They all flower there. Actually all my plants have those conditions, and most seems to do well.
I give it a spot directly under the lamp, because I've read it gets quite a lot of light in nature. it's kept evenly moist, fed year round with normal flower food in about ½ strenght every two weeks, in winter I skip it some times.
I got it as a mature plant, that has been slow growing, but it looks healthy
It is very interesting species.I saw two pictures in the past.In the first there was a stone, on the top there was a clump of druyrii with yellow leaves and with many flowers in full sunlight.Even the surrounding grass was burned out....Second pic showed a grass after a running fire and there was a druryii flower without a leaf....I will try to find them.