PK v. flava is a hybrid between violacea v. alba and amboinensis v. flava, so the color can be very variable. Some may come out really yellow, but some may be white, pale green, or even show some "normal" color from one or both of the parent species.
The star shape makes it look like it could have P. violacea in the background, but the color/markings look like they come from amboinensis. That's still my guess.