On a white cyc wall in a studio I rented. 2 V flats, Explor400pro w 7in silver reflector and 10deg grid. However, up-lighting was used here to create more shadow play on the wall (see shadow is taller now). The light was on a C-stand that had the light going bottom up on a boom arm. Then it was pointed toward the model about 45 deg angle with the light passing through a opening I left after placing 2 v-flats also in front of the model. So we created a sliver of light using a hard light source coming bottom-up for the shadow play.