Organizers of Wichita’s Riverfest have announced the winning poster art for this year’s event. Local artist Terry Twomey submitted the design that was chosen for Riverfest posters, buttons and other promotional materials. He created a nostalgic look for the design, and he said in a press release, . “I think of the Riverfest as a giant block party, with people spending time together. I wanted the poster to be fun, busy, musical and colorful with lots of people doing all sorts of things at once.”