My Wallpapers happened as a result of my drawings growing larger and larger. I buy rolls of paper 10m X 1.5m to accomodate my scale and these seem to do the job! I draw on the floor rolling the sheets out as the drawings progress which means I can never actually look back to see what I've done as the drawings progress. I have to be completly practised and in the zone to draw these rolls of Wallpapers, they are toatally spontaneous.
The commissions came about from people seeing my Wallpapers and asking for them to be developed on the walls of their own premises whether private or commercial.