i am not sure that is a picturata, it looks like another coryanthes species , unless it is a color form that i was not aware of, i think yours could be something else, regardless of what it is, congratulations on growing this one, coryanthes are plants that enjoy VERY VERY acidic media, and by no means an easy to grow plant. (based on my experience)
i have my coryanthes picurata in bloom, i am posting only one image for reference only, the picture is the regular color form of the species, hence the "picturata" name,
i will create its own thread later this week, as i feel i am hijacking your thread. and that is not the idea