Take me...

First I cropped and resized the image and used the cloneing tool and duplicated some parts of the clouds to make the grass lower.

Next I went to Filter/Blur/Gaussian Blur and used 3.5 to give it a soft glow.

Next I added the model,used a medium sized brush with the opacity of 34 and erased parts on the bottom of her skirt,so it gives a look of her standing in the grass.

Also darkened parts of her hair using the sponge and burn tool(this is for her black hair later).

Then I added a gaussian blur with the radius 2.3,blending mode hard light and the opacity to 84% to give her body a soft glow.

Now for the hair,I have some nice hair brushes,so I created a folder in the layers palette and created a new layer for each hair piece.

I took the planet ,placed it in the corner and erased some parts that would conflict with the original background.

Added some nice fractals around her skirt and mouth,just a little added effect.

Then for a "dreamy" effect I added some stars around the sky and her skirt ,also added a small planet.