Sorry not to have got back to this sooner - here are a couple more photos of the first flower open. I will add a plant pic also. Pics are iPhone I'm afraid, all I have to hand.
You don't do justice to the anitum to not include the foliage, which I think is quite lovely.
Otherwise very nice flowers, dark color. This species has a lot to offer for hybridizing I think. It's next on my list to buy, though I hear it is quite difficult to care for....