Right away I knew I wanted the model to have a glowing dandelion in her hand as well as for the all the little floating seeds to be glowing. In order to achieve this I had to do a bit a compositing before making any other edits. I photographed a dandelion and individual seeds separately. This allowed me to easily enlarge the dandelion being held, without affecting the model's face. I then added in the floating seeds where I wanted them.
Next came the glow. I used a combination of a radial gradient (blend mode vivid light) and using curves on a feathered selection to get the look I wanted. Side note Brooke Shaden has an excellent tutorial on the second part on youtube. I had to do this to each individual seed as well as the full dandelion itself.
After all the lights were finished it was simply a matter of getting the colors where I wanted them. I also darkened the background to make it appear later than it was when the image was originally shot as well as to have the model and dandelion/seeds be the focus of the image.