Problem with lighting

I had an expected problem with lighting in the hallway next to the classroom. While the lighting was ok for the overall scene, a close up focus on a face had terrible colors. For this I had to switch off the outside light that was only really necessary for lighting a building outside. Without this light, I had to lower the exposure value, which means that overall lighting of the scene changed.

I could have solved this in two ways, and I chose to simply make additional spot renders of the affected skin of the character and paste that on top of the bad image.

Several choices from the scene in classroom lead to this scene in the hallway and I am reusing a lot of images that I made in the previous story version, but now with the ghost light renders. I will be busy for a few days with this and then continue with a short scene in classroom and then move to the cafetaria.