Building on the previous post, you don’t have to keep it in one spot. Try different locations out and really experiment. Here we moved to a basement stairwell and scuffed up the walls a little plus the light positioning made some of the paint stand out. It changed the tone of the session entirely despite doing the same time poses. I had her do the same exploration with the guitar and guided her from there.
This one was done with a single light, no modifier. It was placed high up pointing downwards. Obviously, the shadows were invited for this one. Then at the end I switched them over to grayscale.