I love doing black-on-black work or using darker backgrounds in my photography.
With Millie, below, I wanted to only highlight her face, which, as you see, is so lovely and expressive.
Sometimes with a subject that is completely black, it is hard to keep the background totally dark, as with this kitty, below, that was not impressed at all with studio lighting, my feather, or me in general. We actually ended up doing his photos in his own home, but I did like this one from the studio and saved it.
Ah, well, you can't win them all over.
Enjoy your weekend and week ahead!