Drawing Challenge#2. Flower's fantasy. step-by-step

This is my second job for the contest. I do not know if it's possible. If 2 works can not be done, then let this be out of competition. I really liked the theme of this contest, flowers are my love!
Today it was a chance day off. When in the middle of August the chief calls to you and says that today you can not go to work and rest all day - it's like a gift! And while the morning and everyone is asleep, you can create and invent flowers of your own imagination!

and the process:
creat the form of the flower

Choose the base color

And color transitions on the petals

Add some shadow and background color

last details

and our beutiful flower is ready