I had been shooting portraits for years and I used to use a beauty dish to the right, a soft box to the left and a hair light behind to the right, up high and angled down.
I started playing with a different setup recently and started to use a 2m parabolic umbrella on a boom and a highlight low and angled up directly behind the subject.
I found that this really makes the model 'pop' against the background but the trade-off is, it really shows up the 'fly-away' hair around her but I don't mind it, as i think it adds a bit more interest to the shot.
Model: Anastasia
MUAH: Mishel Vounatsos Bratsos
Stunning!