Just to get on tracks again.
I made another version of this but I wasn't satisfied.
(here's the link: sta.sh/014egw5mosq0
Buuuuuuut! I took it again and discovered that the perspective value was a liiiiiiiittle bit to high (like 3 against 1 in this). Changed the gradient and made some modifications on it (like saturation and such).
And also, there's a little trick I tried to make the petals more solid.
Dunno if it worked, but I liked the overall result. (some duplication and chaining of some xforms)
(and no spherical in the petal xform
I made it with y