This difference in the color/markings of the blooms on the same plant during different times (of year, season, culture), only goes to show how variable the flowers can be under epigenetic (environmental) influences. To the point that one can claim it is a different plant all together.
I have bloom many like this when the flower is better or worse than previous seasons. That is why sometimes the best blooming of that plant is usually the one that gets awarded. It might take me 3 blooming seasons to get a flower worthy of that acknowledgement lol.