Any suggestions on how to see more creatively? I'm working with semi nude models with a black background.

Yes, come up with a little story about semi nude women and then think about how you would illustrate that story with your camera. This will set your mind onto tracks that you would not have explored otherwise.

Here's a story that I came up with before shooting a model semi nude with a) a screaming red top, b) a screaming blue hotpants, c) a golden metal chain slip:

"In ancient times there was a Chinse girl who had a dress made out of gold. From her whole heart she wanted to wear the dress, but wearing it was so dangerous, that it might have cost her life.
In China golden or yellow color is traditionally the color used in imperial service. The golden color symbolizes wealth and also happiness.
In the Ming dynasty yellow was an almost sacred shade that symbolized imperial power. Any other person – from official to commoner -- that dared to wear yellow or decorate their home in it risked execution.

The only thing the girl could do was to dress in so eye catching colors and in such a seductive way, that one day the emperor would notice her and ask her to become his wife. From that day on she would be allowed to wear gold"

A story like this will set your train of thoughts onto the right tracks.

Thanks to Mathew for the question