Lighting Tests and rendered stills

Here are all the lighting tests and then the final lighting for this part of my environment. This is something I really struggled to do lighting is not my strong point and I think there's something about the scene being in black and white that makes it harder.
Unfortunately I have been unable to bake out my shadows to edit and incorporate into my textures, every time I attempted it Maya crashed and I tried this for each of the objects in my scene and each time the results were the same. There might be something wrong with my model or the way I've applied my textures either way this is one part of my process that I have been unable to complete.

Some rendered stills of the environment so far.