I think the unfurling of the flower is beautiful. It makes me hold my breath waiting to see it blossom completely. I also really love the composition of the flower and how the unopened buds are there supporting the composition but not interfering with it.  I also liked this post-processing more than the one before as it has placed emphasis solely on certain parts. Like a piece of music where it is more beautiful when there are nuances and balance between soft intimate parts and more dramatic intense ones, here the outer leaves feel a bit rigid and strong but that makes the soft delicate petals inside feel more luxurious. 
As much as I love this, I'm not in love with the bottom area in light grey with further foliage behind. It keeps pulling my attention and takes away from the beauty of the shape of the main focus, the sunflower, slowly freeing itself and fulfilling its destiny.