Hi Eric, seems like everyone is taking a go at it; so why not?
I don't do many portraits,but here is how I would treat it...
I have Elements 8 on my computer at home and here is what I did:
Adjust Lighting ---> Shadows/Highlights ---> lighten the shadows so we can see her pretty face more clearly, darken the highlights a little bit so we don't have super light/blown-out areas, and up the contrast a tiny bit
Apply a Soft Omni lighting effect to the right of her face ---> go back into Shadows/Highlights and darken the highlights so the little less extreme and make it look a bit more natural
Adjust Lighting ---> Levels, (sorry, I don't know the proper terms when using levels, but I moved left slider and made it about 10pts to the right, middle slider about 10pts to the right, and the last one, about 35pts to the left, to get the lighting to look like how I wanted)- I left just enough darkness and shadows to make her look a little mysterious.
Lastly, I made a new sepia layer on top, about 15% opacity, to give it just a little tint and then merged the two layers together into a final image
I also went and removed the fly-away hairs on the right.
Just my $.02.
Nice photo of a pretty girl.