The only thing that kept this from being a 10 is that the lighting (exposure?) is off on the left panel as compared to the other two panels. Otherwise this is an excellent grouping of beautiful shots.
Not a bad idea. The focus and DOF is good. I like the water droplets on the petals. I think this triptych would be better if the photo on the left didn't have such a strong orange-yellow tone, while the other two have a greenish yellow tone. I think that, for balance, either all the photos should have the same tone, or the right and left ones should be the same, while the middle one is different. Otherwise, very nice shot.
4 - Good concept. Criticism; a bit dark, especially around the stamens, the yellow seems to have a green tinge to it too. Not sure on the placement, nor frame. The focus is best in 1 on the petals and 3 on the stamens, but not really able to discern the focus in the 2nd.