Well, I have to say I absolutely love that first setting with the flower on each shoulder -- FWIW I think a radiant diamond could be beautifully complemented by the aesthetics of that flower setting particularly if it's in platinum or white gold.
I also really like the last setting design with the coiling pave band, which has a more sophisticated aesthetic as compared to the flower setting, which would be a great showcase for a radiant.
The other two designs are quite nice and both would work with your radiant, but IMO the flower setting and the pave coil setting are much more unique if that's really your goal.
I hope you let us know which setting you select and post pics of the finished ring!