This studio portrait involves a lot of setting up and was
intended for a colour shot. The girl has been posed infringe of 
a background consisting of crumpled aluminium cooking foil.  She
is lit from the front with a single flash bounced from a silver 
brolly, and  there is a small slave flash behind her head firing 
back  at the camera to give a rim light.

I  will often fit a coloured gel or camera lens filter  over 
the flash to give a coloured rim light.  Coloured sweet paper
will do the job !

There  are  also two other small flashes firing across  the 
background - each fitted with a different coloured filter.  This
light catches the foil giving all sorts of mixed light effects.

It  is important to calculate the exposure based on ONLY the 
main brolly  flash,  and  that none of the other flash  units 
are  too bright, otherwise flare will result.

If you have the time, and the model can stand the strain, the
possibilities of such photography are, quite literally, endless.