I am trying to duplicate the glare behind this girl in Photoshop.
How can it be done? Alternatively, is there a tutorial?
Here you go
There are a number of ways to create glare in Photoshop, add a lens flare under the "Filter" section and set the direction of the flare. Find out how to use a "wind blur" to create glare in Photoshop with help from a graphic and Web designer in this free video on Photoshop.