I decided on the "lighting a giant elephant" tutorial http://fx.worth1000.com/tutorials/161386/lighting-a-giant-elephant. I originally brought this up in class and wanted to try it out on my own. The idea behind it is that if you cut and paste an item into a photo with already dramatic lighting, you can edit so that it seems to fit the surroundings. Here is my original image:
Next I selected a special friend to add. I opened up the image in PS and selected just the figure, then cut, pasted, and transformed to where I wanted:

Selecting the image you need to "re-light" duplicate so you have 2 of the same image on top of your original image. Rename them "highlight" and "shadow". Then comes the hard part... adjusting highlights and shadows so not only the tone and color match, but then erasing the dark to let the light shone through in a natural-ish way. It's going pretty rough for me right now:

Alright so maybe it's good I have to post my progress because I forgot that the original hasn't had any levels done so there is no true black. My cut and pasted image is way too dark
Here it's getting a lot better once I lightened up my shadow layer. Still not there yet, but progress is being made:

I worked a lot with burn and dodge to tweak the lighting, and the color tones were STILL not working for me. At this point I decided to re-work the tutorial a bit and switch to black and white which ended up a little abstract, but still really giving you a much better effect than the above pic. b&w was a lot more forgiving for me, I also went back through and dodged the edges the make the image seem more "contiguous" to use a Photoshop word: