just weird

I dont know why i do things sometimes but in photoshop things just happen.
I was not trying for this effect but fell upon it. If you look in sports illustrated magazine you will see the effect used quite often.
I assummed that they would have made a selection and then just applied a stroke, which they very well may do. However this approach would be much easier, especially around hair.
I photographed this lady on a white background and selected the background in photoshop using the color range tool. Select - color range. Just click on the white area in the background and then hold the shift key down and click again, and again until the background is fully selected. I then went to select - inverse , clicked on the lasso tool (just so the refine edge button would show) and then clicked on the refine edge button. I entered a value of 36 for feather and +45 for contract/expand. Since she was on a white background I ended up with a white soft stroke around her.
Just so it would show i opened another photo, of a cool sky i shot tonight, and while holding the shift key down, dragged her onto it. I then wanted her a bit smaller so i used edit - transform - scale, and holding the shift key down to constrain the proportions drug the top corner down until the size looked good against the background. I cropped the image and was done.