Mine has been preparing to spike for some time now. The base keeps getting fatter and fatter, and yet the sheath(s) is/are taking a long time to move out of the crown. I guess it's preparing to put on a show.
Anyway, the color on your newly opening plant is beautiful. I hope it stays that way, since in my experience, these kovachii hybrids start out looking like rockstars with great petal shape and deep, intense colors. Then as they age, the petals start to twist and curl asymmetrically and the color typically fades quite a bit.
I still love them though. The flowers are impressive in size for a slipper, and even if the color fades, it still usually ends up being attractive.