I have to wonder if you are getting your white balance set in the first image before your shooting. The image has so much green tint to it it just really takes away from a nice pose by the young man. The light seems off also because the side of the face we see the most of is so dark. You need to rethink your use of light in both images. Get the pictures right first than worry about any touch ups in Photoshop. One thing I will have to say about the second image is that the back light hitting the subject is too light, it is brighter than the background. I think you have a nice vision when it comes to how to pose your subjects but you need to rethink your use of lights on the subjects.