Prepare images to place in page layout programs
Recollect, that they send to you in connection with concrete interest, and you are for them the expert in this area. Help them to understand. Help to make a correct choice. Tell about your competitors and competing offers, describe their merits and demerits. Be not afraid to give the reference. Be objective. Do not exaggerate own advantages, but also do not underestimate them. Your impartiality in itself will give you appreciable competitive advantage.