From your pics, it looks to me like you've got two different flower variants; the male is what most exporters call a 'normal' flower, whereas the female is a 'Trebol' or black flower. I'm actually in the same situation right now - one of each, same as yours are, and my female is black most of the time but the male is still 'washed out' and not even close to being fully dark yet. Great looking flowers!