NEW YORK (REUTERS).- Economic woes have pinched the pockets of wealthy art patrons, but artists who rely on those commissions say they are surviving, albeit with more specialized works and smaller payoffs. In a time of tight budgets, commissioning a work of art for commercial or corporate spaces like Rockefeller Center must dovetail with a company’s marketing strategy and promote its public image, not just soothe charitable urges. “They’re still doing it, but the commissions are smaller. There’s no question,” said Anne Pasternak, president and artistic director of Creative Time, a New York-based nonprofit organization that commissions public art works. But, she added, if commissioned art is not already core to the mission of a company or business, “they’re not going to start