I applied a cooling filter layer in Photoshop CS3 to increase the color temp of the orange lower half of the image. I then used a gradient mask to fade the effect of the filter so that it only affects the lower half of the image. I did not spend more than a few seconds doing this, but it would take a little more time - you would need to paint in some masking features like the hair on the girl's right side (notice it looks blue like the filter), etc. But you get the idea. I was just trying to match the fleshtones in the lower half of the image with the facial fleshtones for this mock up.
screenshot
Good luck!
It looks like you shot with a flash but there was tungsten ambient light that was spilling onto the subject outside the focused area of the flash - two very different temperature colors. If you want to shoot with the flash and tungsten ambient light, use a CTO gel on your flash to match the flash color temp to the ambient tungsten light.
Kirk