Thank you all! I like the clearly striped dorsal, no mush. The flowers are still increasing in size , from top of the dorsal to the tips of sepals it meassures about 20cm now. That is pretty good I think!
The petals in fact are darker as on the pic; it is quite difficult to get the right light, most parts of the flower are glossy and give strong reflections.
I'll try again when there'll be six flowers!:wink: