As above, the selective coloring is a no-go for me, but that's not an unusual comment...I just don't particularly like it.
My memory is a bit fuzzy sometimes, but aren't you the one with the keyhole and wings shots earlier?
If so, you still have some lighting issues IMO. (tungsten work lights?) The lighting on her front side is overpowering and taking away any detail from her hair from....well all the way down. The highlight of her leg should be more subtle, but there nonetheless. Try diffusing the light with a sheet or something similar as well as pulling it further back (if possible).
What kind of lighting do you have on the noose? I like how it casts a shadow on the opposite wall. Can you do something similar but less intense to the top of her head ( a kicker light) to accentuate the top of her head (hair really)?
Also consider using a bounce card off the main light (camera side) to reflect some light to her right side and give some hint of detail and more definition. Just enough to make out that she has an arm so to speak.
One final thought. Whatever position you are directing your model to be in, be conscience that she not roll her shoulders forward.
I really like your efforts. Keep posting.