The lesson
Title a first-call deck as the change happening to the buyer's customers, and put the speaker and brand on a human-scale photo.
The cover is a blurred overhead crowd photo, tinted red-pink, with "TURNING CUSTOMERS INTO SUBSCRIBERS" centered on it, "Tien Tzuo, CEO & Founder, Zuora" lower left and the Zuora logo lower right. Inside, it moves from a named change to winners and losers to a promised land, with full-bleed photos and one-line claims.
Skip the tinted stock-style crowd if it is not your brand. Keep the change-first title, the winners-and-losers framing and one claim per photo slide.