I prefer darker backgrounds too, with a little lighting to lift the subject off the background.
Good job nailing the perfect Melbourne grey
I find the crooked line of her white shirt a little distracting though, along with the slightly awkward shoulder placement, it gives me the feeling that the model could have been a little better prepped to get those little details right.
I initially thought her sleeves needed a little tug down as well to straighten the shoulder line of the jacket/top but on closer look, it appears to be the way the garment is made?
A lovely mix of the candid and professional though in her look.