5DMKII, 85mm f/1.8, 1/200 @ f/2.8, ISO 100.
Experimental back lighting with a bare strobe (580EX) 1/16 power directly behind Kara slightly to the right. Played with different camera positioning to get the lens flare. To balance the light on her face, I placed a 430EX directly in front of her about 2 ft away & diffused the light through an umbrella.
Then I processed it very late last night. I'm not sure what I did because I have the messiest PS workflow ever. tsk tsk. I know :P