Norman Foster will discuss his winning scheme for an office tower at 425 Park Avenue on Friday morning at the 2012 Municipal Arts Society (MAS) Summit for New York City, a two-day event kicking off today that features panels and presentations about making the city more livable. L&L Holding Company, the developer of the 650,000-square-foot Manhattan tower, named Foster + Partners the winner on October 3. Designs by the three other finalists—Rogers Stirk Harbour & Partners, Zaha Hadid Architects, and OMA—will be on display during Friday's panel. See these renderings in the slideshow above and stay tuned for more about this project. Below are the texts accompanying each architect's exhibition entry.