When submitting a panel of prints for an RPS Distinction, a layout plan has to be supplied of how the photographer wishes the prints to be displayed. The RPS is fairly flexible and I suspect most things can be arranged if discussed with them before submission. However, the normal way is in a columns and rows arrangement. Since the normal number of prints for ARPS is 15, it seemed obvious to display as two rows, 8 bottom and 7 top, in the sequence below.
For more information on the RPS and Distinctions, visit the RPS website www.rps.org