However, upon trying to line the images up, I found a few problems. Firstly my head was at a different angle in the two photos, and secondly, the top of my head was cut off on the side image, making the two images nearly impossible to line up. So I retook the photos, and found two that would line up properly.
I then took these images into Photoshop, and lined them up so that the features were at the same level and scale as each other.