Wonderful! The colour transition is very nice.
Is the flower fully open? If the left petal is stuck there, then just grab one of these things ...
click here to gently prop the petal up (for a day or so), until it 'sets'.
The helping hands can even be used to bring the lower sepals back down a bit ..... keep in place (for a day or two) until they become fixed in place as well. That is, to undo the reflexing.
If the left petal is still opening, then cancel that idea hahaha.