Blooming Rose Animation

Hey guys,
Here is an animation I just did of a rose blooming.

Rendered in Cycles
720p (even though it says 1080p)
100 passes (about 2 minutes) per frame
Around 8 hours total render time

Watch on Youtube

Comments and critiques welcome.

Looks great.

Did you use shape keys for the animation?

Very beautiful. I loved it.

Yes I did, its all shape keys.